ProofSketch vs ReverseChoice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ProofSketch
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ProofSketch helps you structure mathematical proofs through theorem cards, linked proof steps, lemmas, dependency maps, revision history, and PDF export. It does not generate proofs, verify correctness, provide hints, or evaluate accuracy.
ReverseChoice
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ReverseChoice is an outcome-first reconstruction tool. Users inspect visible results, compare possible earlier decisions, review causal clue trails, and save immutable Reverse Traces.
Screenshots
Verdict
The clearest difference is update cadence: ProofSketch at every 5 days against ReverseChoice's monthly. 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.
ProofSketch ships an update every 5 days, ReverseChoice monthly. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.
| Parameter | ProofSketch | ReverseChoice |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 34 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Simge nur Karadag | Thuy Duong Le |
In-app purchases
ProofSketch
No in-app purchases
ReverseChoice
No in-app purchases
Questions
Is ProofSketch free?
Is ReverseChoice free?
Do ProofSketch or ReverseChoice have ads?
Which is updated more often, ProofSketch or ReverseChoice?
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