Wednesday, March 25, 2015

Genius Scan 3.8 "Vault" for iOS

We told you this was a great week: After releasing a new update of Genius Scan for Android on Monday, we are releasing Genius Scan 3.8 for iOS today!

Genius Scan 3.8 brings you all the tools to safely store your documents and export them to new destinations.

Touch ID

You can now protect Genius Scan with Touch ID. When enabled, you won’t be able to enter Genius Scan without identifying yourself with your fingerprint. Genius Scan will also require that you set a fallback passcode in case the fingerprint sensor has some trouble identifying you. Of course, if your device doesn't have Touch ID, you can still benefit from this feature as a simple passcode.

Touch ID locks your documents

The passcode screen if you don't
have Touch ID.

PDF Encryption

You may want to transmit PDF documents securely so that they can’t be read from anyone but the recipient. You can now setup a password for all your PDF files, or when you export a specific document.

If you export a PDF, you can
now protect it with a password.


SugarSync is a popular document storage service with tons of powerful features and we thought it would be great if our users who are also SugarSync users could export their scans to this service.

And as usual, some bug fixes

  • Seconds are back in the document name when exporting a scan directly. This solves a bug where exporting two documents in the same minute would generate a name collision and potentially overwrite the first file.
  • Genius Scan didn't let you properly select PDF files when using the cloud import feature. A thing of the past.

Don't wait, download Genius Scan here. Some of these features are only available in Genius Scan+ but you can try the free, fully functional Genius Scan for as long as you want:

As usual, we are always looking to hear from you if you have any feedback, comments for us. Email us at or ping us on Twitter.

Monday, March 23, 2015

Genius Scan for Android 2.0 with Material Design

We just launched Genius Scan 2.0 for Android! Over the past few weeks, we've worked to improve the scan flow, we've revamped the design while still keeping it familiar. Last but not least, we've added a few useful features.

Material design and improved UX

Genius Scan 2.0 comes with a brand new Material design:

A floating button is now present almost everywhere to let you access the scan action faster. The button turns into a plus sign to indicate that you can add a new scan to the current document.

We have also added nice shadows, ripple effects when you tap on a button or a scan and the document details are now displayed using card views.


A Search function similar to the iOS version of Genius Scan is also available to quickly access a specific document.

PDF Options

Many users have requested the ability to define the dimension of the PDF pages. You can now set the page format of PDF documents in the Settings:

The Page size can be set to a predefined format such as Letter, Legal, A4, Business Card or your can keep the default, to fit the image size, as it used to be in the previous versions. The Page orientation setting is useful if you want to force all pages to be landscape or portrait.

Enjoy this new version and let us know how you like it at!

Monday, February 23, 2015

Genius Scan 3.7 for iOS with Multi-Selection

Genius Scan is regarded as the fastest way to scan, organize and export your documents wherever you are.

Over the past few weeks we've been busy building two new features: the first one is the multi-selection which lets you apply actions to several documents or pages at the same time. Next is what we named "Smart document names" which allows you to name the documents the way you want. Last but not least, exporting a business card to Microsoft OneNote will now extract the contact information.


The multi-selection renders possible:
These features won't get in your way if you are not using them, though activating the multi-selection is particularly easy: tap Edit in the top right corner of the screen and the toolbar will update with all the multi-selection options.

We know that this feature will save you a lot of time!

Applying actions to multiple documents

Applying actions to multiple pages

Smart Document Names

In previous version of Genius Scan, documents have always been named using the current date (2015-02-21 19:55). This pattern is very convenient because it lets you sort your documents by date. However, different users have different needs and that's why we are introducing the smart document names.

You can now define rich patterns for your document names. You build a document name by adding different items to the pattern. Dates, times, custom text and even your current location can be used to name documents.

Documents can be named using the date,
time or even the current location.
Smart document names can be turned on in the settings. They are available in Genius Scan+.

Smart document names are available in the settings

Auto-Extraction of Business Cards with OneNote

Last but not least, we have a cool bonus feature. If you are exporting business cards to Microsoft OneNote, the different fields (name, address, phone, email …) will be extracted and a contact will be attached to your note.

Let us know what you think on Twitter @thegrizzlylabs.

Tuesday, February 10, 2015

Buy Genius Scan+ and fund medical treatments through Watsi

On February 10 and 11, 2015, we are giving away all the proceeds from the sales of Genius Scan+ to Watsi. If you purchase Genius Scan+ on one of these two days, the proceeds will go to Watsi. We will publish the results of this fundraiser on our website once the operation is over.

Watsi connects ordinary people with patients in serious need of low-cost medical care and enables them to fund high-impact treatments.

[Updated Feb 17, 2015]

With your help, we raised more than $5,000 for Watsi. Thanks everyone who donated and shared this operation.

Friday, January 23, 2015

Box Goes Public on the New York Stock Exchange - Congrats!

Today, Box went public on the New York Stock Exchange. We first wanted to say congrats to everyone at Box. As part of the OneCloud group, Genius Scan has been a small part of this journey and even got a mention in Box S-1 filing with the Security and Exchange Commission. We are proud to have been one of their early partners.

Genius Scan's integration with Box is one of our favorites. It enables small businesses to scan and store paper documents directly in their Box account. Once there, they can be archived for later use or shared within the company with precise privacy controls.

Having a scanner at hand, particularly when in the field, is not very common. Being able to quickly scan documents into Box can be useful in a lot of scenarios:
  • Collecting student forms at the beginning of a program
  • Small aircraft companies documenting pilot certificates, medicals or any expenses such as fuel. Relying on airport copiers to do so can be time consuming but scanning with Genius Scan and sending to Box is quick.
  • Insurance agents sending customers forms filled out and signed directly to the headquarters
  • Nurses quickly sending prescriptions and documents between hospital departments
  • Teachers digitizing students homeworks and storing them in the cloud for later grading
  • Construction workers and architect snapping pictures of maps and blueprints for later reference

Concretely, scanning to Box is just a few easy steps:
Scan a paper document

Save the pages in a PDF file if needed

Rename and chose the folder as needed

Export in the background, get notified when it's successful

Your file is on Box, you can share it, comment on it etc.

Box integration is available in Genius Scan+ for iOS and Android.

Monday, January 12, 2015

What's new in Genius Fax 2.0.3

The first update of the year is for Genius Fax. Genius Fax is Genius Scan's little brother allowing you to fax documents from anywhere. Version 2.0.3 is an incremental update to improve upon the existing version. Here is what's new:

iPhone 6 support Genius Fax takes full benefit of the larger screens on iPhone 6 and iPhone 6 Plus.

Improved cloud support Cloud support is extended on iOS 8 to support more services as well as iCloud Drive. You can now chose PDF and images to fax from any compatible cloud app (Box, Dropbox, Google Drive, OneDrive, ...)

Enhanced compatibility with Genius Scan. If your document has already a title in Genius Scan, Genius Fax will re-use that title for the fax.

Support for more countries. Belgium, Greece, Netherlands, Romania, Saudi Arabia, Spain, Sweden, Switzerland are now available. We will keep adding more over the next few months.

As usual, we are always available at for any questions or feedback!

Tuesday, December 2, 2014

Implementing a Large Scale Document Storage Service

In this post, we explain why we decided to work on a document storage service for Genius Scan and how we are approaching this engineering challenge. We think that the process is worthy of being shared and we also hope to get feedback from the community.

A little background

At The Grizzly Labs, we create helpful productivity apps. Our main product, Genius Scan, is a scanner for iOS and Android. It’s one of the most popular mobile apps, netting more than 15 million downloads since its debut in June 2010 — we never invested a cent in advertising — and constantly receiving great feedback.

Genius Scan is at the interface between the physical and the digital world: it enables you to snap a photo of a paper document, to correct any perspective distortion and to process it like a real scanner. With several scans, you can build multi-page PDF documents. Genius Scan is also particularly good at exporting them wherever you want (Box, Dropbox, Email, Evernote, Expensify, Google Drive, OneNote, OneDrive, FTP, WebDAV…)

While we expected users to use Genius Scan to scan and export documents, we noticed that a lot of them are using Genius Scan to store their scans for the long term.

Solving problems for our users

Genius Scan stores documents on the phone in the local app folder. Due to the app sandboxing, this folder is only accessible to Genius Scan and documents are not synced between different devices. They also never leave the phone unless you decide to export them (the exception being your automatic iOS backups). This has two advantages: simplicity of implementation and privacy.

Yet, after 4 years of answering support emails, we are clearly seeing patterns in user requests:
  • Backup. Users can lose documents for many reasons: accidental deletions, improper install of new OS updates, phone lost or stolen. The unsatisfying workaround is to restore a complete phone backup from iCloud, provided that users have any.
  • Device migration (transfer of documents from an older device to a newer one). The problem arises during cross-platform transfers, typically between iOS and Android. There is no obvious way for users to access the documents they created on the previous platform. The workaround is to export the documents to a cloud service such as Dropbox. Users can later access them within the Dropbox app on the new device. We experimented with a backup and restore system for the Android app, but it’s more a patch than a satisfactory solution. This issue can arise as well when upgrading iOS devices if the user doesn’t have device backups setup.
  • Synchronization (accessing documents from any device). Users scan documents on their phones and want to read them afterwards on a tablet. The only way to do this currently is to export the documents to a service such as Dropbox and view them on the tablet within the Dropbox app. Likewise, users would want the documents to magically appear on their computer.
  • Extra features which require processing power or a backend. Examples of such features are: OCR, OCR indexing (similar to what Evernote does), document signing and sharing.
All this feedback keeps showing us the need for a document storage backend with synchronization logic.

Self-imposed requirements

One of the main challenges we face is that Genius Scan is already at large scale. Our millions of monthly active users scan about 250,000 new documents every day and have already generated more than 200 million scans. While we can find ways to stagger the launch, we can’t build a simple architecture that we would subsequently scale.

Looks like Mondays are scanning days, and that nobody scans turkeys :)

Our backend needs to meet the following requirements:
  • Security and privacy. Obviously, the first feature of this backend.
  • Data integrity. Users store very important documents in Genius Scan (losing receipts can translate into thousands of dollars that cannot be expensed.) There cannot be any loss of document as a consequence of users turning on synchronization.
  • Ability to handle network conditions. Mobile devices can go offline for a long time, and then pop back online (eg.: a user scans documents during a flight)
  • Cross-platform. We need to support iOS, Android and potentially other platforms.
  • Optionality. Users don’t have to use the synchronization, particularly if they have privacy concerns.
  • Financial sustainability. we plan to be able to cover the costs associated with this backend for the long run. A simple spreadsheet and a few estimations are enough to understand the cost structure. In our case, the monthly storage cost (S3) will dominate.

Different options

Synchronization is a typical problem and there are various alternatives:
  • With iCloud, iCloud Drive, no server-side work would be required. However, backup, device migration are not addressed, and synchronization only partially. One of our worries with iCloud was its instability, but it overcame this bad reputation with iOS 7 and 8.
  • CloudKit is also a potential solution. Given our scale, though, it won’t be a good fit due to the storage limits. On top of that, it’s limited to iOS.
  • Cross-platform cloud storage services: Dropbox, Box, OneDrive… Using these services as a backend tackles backup, device migration and synchronization and we wouldn’t be reinventing the wheel. There are several drawbacks: we need to adapt to their synchronization model — with Dropbox: the sync unit is the file — and we also become dependent on a third-party platform. Last but not least, any extra features (indexing, search, OCR) will be harder to offer since we won’t manage the document storage.
  • Ensembles developed by Drew McComack is an impressive project and could be an appropriate solution. However, it only synchronizes objects stored in Core Data: it wouldn’t be trivial to synchronize the scans themselves. It also doesn’t support Android (that being said, Ensembles 1.x is an open source project and could be extended.) Last, the cloud is used for temporary transfer, and not for data storage (peer-to-peer synchronization model) so it wouldn’t be usable for backup and extra features.
  • Our own service. This would address the different feature requests although the main drawback is that we would be reinventing the wheel.
After meeting with several top enterprise companies in San Francisco and in France, we decided to settle on implementing our own service due to the drawbacks of other solutions.

Steps we’ve taken

It’s crucial for us to identify trouble early. However, it’s easy to keep listing potential issues and corner cases and postpone the implementation, so we decided to take iterative steps towards our goal.


We are estimating the load that our millions of MAU would generate on our backend through a couple channels: metrics and surveys. They are a lot of options for metrics. As for surveys, we can query users by displaying an in-house banner ad in Genius Scan. We also ask people who contact us for support.

An important metric is how many documents a typical user (vs. a power user) has. We are also interested in estimating the peak rate of document scanning during a day.

On top of that, surveying users enables us to understand the financial sustainability: Are users ready to pay for such a service? Should we offer a limited trial to everyone? etc.

Using the Dropbox SDK in our Android app

To get started, we wanted to put together a version of Genius Scan with some kind of synchronization. We first implemented a simple prototype by modifying the Android version of Genius Scan to use the Dropbox Sync API. This was fairly quick and took a couple day for a rough implementation.

Having such a prototype had several benefits: first, it gave us some self-confidence regarding the feasibility of this project. Second, it let us play with something concrete in order to think about the UX of the client apps; and finally, this was a first step in identifying potential issues on Android and in general (what are the typical synchronization conflicts, what behavior would we expect as users).

Custom implementation

Our next step was to develop our own client-server solution. This time, we focused on the iOS app. We developed a straightforward backend using Sinatra. We covered this implementation with extensive specs in iOS and Ruby for the server.

We based our architecture on Evernote’s synchronization. The brain of the synchronization is located in the client and the server holds the state. In some ways, the model structure is similar: In Genius Scan, documents contains pages, and can be optionally tagged. In Evernote, notebooks contain notes and can be optionally tagged.

Our client implementation fits nicely with the existing Core Data code Genius Scan relies on. It’s also surprisingly not intrusive: all the synchronization happens in a different managed object context and the contexts use decoupled notifications to communicate.

The goal of this iOS prototype was to deepen our understanding of the synchronization. The first iteration of this implementation took a bit less than a week to develop without the conflict handling.

We are refining this early implementation (we plan to write a more technical blog post on the subject). Note that it still focuses a lot on the client side and that our server component is running on fast local network. One of the next moves will be to test this implementation under real network conditions including latency and errors.


The two of us are super excited to be working on this project that we had postponed for a while. We want to provide this service to our users as soon as we can; however, we are not in a hurry. Since we don’t have any pressure, we can take our time to get it right.

If you’ve read until here, we are also very interested in your feedback (Hacker News). In any case, rest assured that we will keep you updated on our progress.