Comparison

ProofSketch vs SpeedSense.ED

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

Head to head

Map proof structure

Train Thought Timing

About

ProofSketch

Features

Read full description

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.

About

SpeedSense.ED

Features

Read full description

SpeedSense.ED helps you practice choosing the right thinking pace. Read one scenario, pick fast or slow reasoning, compare the better pace, then save a Sense Card with your takeaway.

Screenshots

ProofSketch4 screens

SpeedSense.ED4 screens

Verdict

The call

ProofSketch and SpeedSense.ED are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

ProofSketch ships an update every 5 days, SpeedSense.ED every 8 days. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.

ScorecardNo meaningful differences

ProofSketch versus SpeedSense.ED: the parameters behind the verdict, then further details
Parameter	ProofSketch	SpeedSense.ED
Price	Free	Free
Update frequency	Every 5 days — better	Every 8 days
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	29 MB
Age rating	4+	4+
Developer	Simge nur Karadag	Ngon Dang Ngoc

In-app purchases

None

ProofSketch

No in-app purchases

None

SpeedSense.ED

No in-app purchases

Questions

Is ProofSketch free?

ProofSketch is free to download, with no in-app purchases.

Is SpeedSense.ED free?

SpeedSense.ED is free to download, with no in-app purchases.

Do ProofSketch or SpeedSense.ED have ads?

Neither ProofSketch nor SpeedSense.ED shows ads.

Which is updated more often, ProofSketch or SpeedSense.ED?

ProofSketch ships an update every 5 days, and SpeedSense.ED every 8 days. Most recently, ProofSketch was updated on September 21, 2026 and SpeedSense.ED on September 15, 2026.