Deferendum vs Reverse PET
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Deferendum
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Deferendum helps communities, associations and teams make decisions together and follow what happens next. Raise an issue, help your group assess its urgency, and contribute to the wording of the question. Explore arguments and comments, take part in eligible votes, and see the outcome according to your group's rules. Keep the next steps visible with responsibilities, progress updates and completion confirmations. Find your groups, browse decision history and follow your participation in your personal passport. Group administrators can manage members and invitations. Members can contact support, report content and manage personal interaction blocks from the app. Use your Deferendum account on the web and in the app. An account and access to a group are needed for group activities. The interface is available in English, Romanian, Spanish, French and Portuguese; members' contributions remain in their original language. Screenshots show an illustrative community with fictional names and activity.
Reverse PET
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Introducing the revolutionary app that not only encourages eco-friendly behavior but also rewards you for it - the ultimate win-win! By simply collecting and recycling items, you can earn exciting rewards With a user-friendly interface and real-time tracking of your recycling progress, this app makes it easy and enjoyable to make a positive impact on the environment. Join the movement, earn rewards, and be a part of the solution with this innovative app today!
Screenshots
Verdict
The clearest difference is update cadence: Reverse PET at every 6 weeks against Deferendum's every 7 months. Deferendum's advantage is iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Deferendum ships an update every 7 months, Reverse PET every 6 weeks. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.
| Parameter | Deferendum | Reverse PET |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | Every 6 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad β better |
| Requires iOS | 16.4 β better | 18.0 |
| Further details β not scored | ||
| Size | 33 MB | 29 MB |
| Age rating | 17+ | 17+ |
| Developer | GOLIVE ONDIGITAL SRL | Reverse PET S.R.L. |
In-app purchases
Deferendum
No in-app purchases
Reverse PET
No in-app purchases





