Comparison

Deferendum vs Reverse PET

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Deferendum

Features
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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.

About

Reverse PET

Features
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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

Deferendum4 screens
Reverse PET4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences Β· 4 level
Deferendum versus Reverse PET: the parameters behind the verdict, then further details
ParameterDeferendumReverse PET
PriceFreeFree
Update frequencyEvery 7 monthsEvery 6 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad β€” better
Requires iOS16.4 β€” better18.0
Further details β€” not scored
Size33 MB29 MB
Age rating17+17+
DeveloperGOLIVE ONDIGITAL SRLReverse PET S.R.L.

In-app purchases

None

Deferendum

No in-app purchases

None

Reverse PET

No in-app purchases

Questions

Is Deferendum free?
Deferendum is free to download, with no in-app purchases.
Is Reverse PET free?
Reverse PET is free to download, with no in-app purchases.
Do Deferendum or Reverse PET have ads?
Neither Deferendum nor Reverse PET shows ads.
Which is updated more often, Deferendum or Reverse PET?
Deferendum ships an update every 7 months, and Reverse PET every 6 weeks. Most recently, Deferendum was updated on October 6, 2026 and Reverse PET on October 12, 2026.

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