R2 Docuo vs One Big Thing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
R2 Docuo
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R2 Docuo is a cloud storage, document management and workflow service. The tool belongs to the following categories: Document Management Software, Enterprise Content Management Software (ECM) and Workflow Management Software. In order to use R2 Docuo for iOS you will need: (1) an R2 Docuo repository Id, (2) a user, (3) a password. If you do not know this information, please contact your R2 Docuo administrator. R2 Docuo for iOS offers a limited set of features that is listed below: - Connection to one or more repositories. - Login screen personalized with the repository corporate image. - Upload, download and preview files using the folder view. - Download and preview files using category view. - Download and preview files using the recent view. - Download and preview files using the favorites view. - Access for user accounts and collaborator accounts. - Document search - Access and edit document details, including metadata, attachments and user comments. - New document creation from existing R2 Docuo categories. More features will be added in successive versions of R2 Docuo for iOS.
One Big Thing
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A Todo app with ONE big difference. Set an intention for your day with one big thing. Review your previous Big Things. Receive notifications to remind you to check in on your big thing, and mark it as complete if you've done it.
Screenshots
Verdict
The clearest difference is update cadence: R2 Docuo at every 9 days against One Big Thing's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
R2 Docuo ships an update every 9 days, One Big Thing every 2 months. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | R2 Docuo | One Big Thing |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 111 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | R2 Sistemas Informaticos S.L. | Thomas Chatting |
In-app purchases
R2 Docuo
No in-app purchases
One Big Thing
No in-app purchases
