Comparison

Proof Fidget vs Study Streak Calendar

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

Head to head
About

Proof Fidget

Engage with math through interactive puzzles that build proofs step-by-step. Learn logic, algebra, number theory, and geometry by making correct moves and receiving immediate feedback. Develop intuition for abstract concepts in short, satisfying sessions.

Highlights
  • Puzzle-driven math learning
  • Step-by-step proof building
  • Logic and proof techniques
  • Algebraic transformations
  • Number theory practice
  • Geometry and visual aids
Features
Read full description

ProofFidget is a puzzle-driven way to learn the feel of doing math: not by memorizing procedures, but by making correct moves, one step at a time, until a proof truly holds together. Each puzzle gives you a clear goal and a partially-complete derivation. You spin the wheel to choose your next move, then commit to a step and watch the proof line up. If you’re right, you progress; if you’re wrong, you learn quickly why it didn’t fit. The result is a tight feedback loop that makes abstract ideas concrete and surprisingly fun. You’ll work across a growing set of subjects, including: Logic and proof techniques: build confidence with implication, contradiction, and structured reasoning. Algebra: make valid transformations while keeping equations balanced, supported by visual “balance scale” diagrams. Number theory: practice modular arithmetic, divisibility, and gcd-style reasoning with intuitive visuals. Geometry and beyond: use diagrams to ground symbolic steps in something you can see. ProofFidget is designed for short, satisfying sessions, but it also rewards deeper play: you start noticing patterns, choosing steps for the right reasons, and developing proof instincts that transfer to real coursework and problem-solving. If you’ve ever thought “I understand the formula, but I don’t understand why,” ProofFidget is built for that moment.

About

Study Streak Calendar

Features
Read full description

Study Streak Calendar helps you stay consistent every day. - Tap once to mark today as completed. - Keep your streak alive and see your personal best. - View monthly progress with a GitHub-style heatmap. - Review trends with a 12-month statistics chart. - Get reminder notifications when you have not studied yet. Designed for students, language learners, and anyone building a learning routine.

Screenshots

Proof Fidget4 screens
Study Streak Calendar4 screens

Verdict

The call

The clearest difference is price: Proof Fidget at Free against Study Streak Calendar's $1.99. On ads, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Proof Fidget is free to download; Study Streak Calendar costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
Proof Fidget versus Study Streak Calendar: the parameters behind the verdict, then further details
ParameterProof FidgetStudy Streak Calendar
PriceFree — better$1.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size10 MB1 MB
Age rating4+4+
DeveloperMatthew MurphyManabi Mate LLC

In-app purchases

None

Proof Fidget

No in-app purchases

None

Study Streak Calendar

No in-app purchases

Questions

Is Proof Fidget free?
Proof Fidget is free to download, with no in-app purchases.
Is Study Streak Calendar free?
Study Streak Calendar costs $1.99, with no in-app purchases.
Do Proof Fidget or Study Streak Calendar have ads?
Neither Proof Fidget nor Study Streak Calendar shows ads.

Other comparisons