Comparison

Geometry Stash vs Alge

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

Head to head
About

Geometry Stash

Access geometry theorems, postulates, and corollaries with descriptions and diagrams. Create and share custom slides with a built-in editor, exporting them in various formats. Ideal for students and educators needing a portable reference.

Highlights
  • Geometry theorem reference
  • Diagrams for geometric terms
  • Custom slide creation editor
  • Vector graphic slide export
  • iOS Spotlight Search integration
  • Slide Over and Split View support
  • Bulk slide import for educators
Features
Read full description

Reviewing geometry on the go has never been easier. Just swipe to a term to view its description and diagram! "Instead of paging through their textbook for the theorems, now students can use this app" -Wired "Geometry Stash is truly ideal for anyone needing a quick reference guide for geometric theories" -SlapApp Which theorem completes the proof? Refresh your knowledge of the most commonly used theorems, postulates, and corollaries with Geometry Stash. Swipe to a term to check it out! Make your own slides to share with others using a built in editor. Write custom slides with drawing commands with instant preview. Share slides in a snap — Airdrop, iCloud, Message, Mail, and more! Your creations will be rendered as vector graphics that retain their crisp and sharp edges no matter what device others and you use! Additional Features: • Custom slide creation: Write your own slides through drawing commands in JSON, a lightweight data-interchange format. Edit on your device, computer, anywhere. • iOS Spotlight Search: Find your slides using iOS Search. • Slide Over and Split View: View slides alongside other study material. • iCloud Drive: Access created slides on all your devices. Write on the computer and view on the go. • Portability: Export slides as JSON, Image file, or Text. • Guided Access: Limit editing slide functionality to keep learners on track. • Bulk Import: Distribute multiple custom slides using a single bulk import file. Ideal for educators and administrators! What others have said about Geometry Stash: "Geometry Stash Offers Comprehensive Mathematical Guide" - The iPhone App Review "My pick for Geometry Stash in terms of what to use it for is actually studying for exams. It certainly beats the flash card system I used for my SATs" - AppBite "Don't let your Math assignments get you down when you have Geometry Stash to help you through" - CooliPhoneApps.com "[Mirroring] would be great in a classroom or for a group study session" - EDUInReview

About

Alge

This game helps you master algebraic equation solving through an engaging Bingo format. It progresses through 13 levels, from basic to multi-step equations, and offers various Bingo patterns. Track your progress and compete with others to improve mental math skills.

Highlights
  • Algebraic equation solving
  • 13 progressive learning levels
  • Multiple Bingo game patterns
  • Time and point tracking
  • Mental math skill development
  • Suitable for various age groups
Features
Read full description

WINNER - 2012 NATIONAL STEM VIDEO GAME CHALLENGE, HIGH SCHOOL EDUCATOR DIVISION Created by a high school math teacher with over 30 years of experience in the classroom. Develop your algebraic equation solving skills through playing a Bingo game. The goal is to transfer the player’s skill level to solving complex algebra equations mentally. This game will take you step by step through the process of learning how to solve the most basic equation up through multiple-step equations by way of 13 different levels and it will allow you to choose from a variety of Bingo games from straight-line Bingo through multiple patterns of Bingo all the way up to Black-out Bingo if you choose. The game will keep track of your time and points to be able to compete with others as well as yourself. With the new standards being taught in classrooms, the age and grade-level of students learning to solve equations continues to get younger and younger. Therefore, Alge-Bingo can be enjoyed by 1st and 2nd graders all the way up to college students to increase their skills and mental dexterity. It can also be used an Algebra tutorial for anyone preparing for a standardized test such as the S.A.T. or A.C.T. Alge-Bingo was created by a veteran public high school teacher who taught math and computer applications for over 30 years. It is an iOS app version of a game he played with his students for years with an overhead projector! Alge-Bingo won the 2012 National STEM Video Game Challenge in the Secondary Teacher Division sponsored by Sesame Street. It is being re-released in 2020 with updates for new screen sizes, more accurate and faster coding, along with new animations and sound effects. And for the first time, Alge-Bingo is FREE!

Screenshots

Geometry Stash4 screens
Alge4 screens

Verdict

The call

The clearest difference is review sentiment: Geometry Stash at 83% against Alge's 58%. Geometry Stash also leads on update cadence (every 6 weeks vs every 5 months) and iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases and monetization model 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

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

UpkeepUpdate frequency

Geometry Stash ships an update every 6 weeks, Alge every 5 months. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

Scorecard3 real differences · 7 level
Geometry Stash versus Alge: the parameters behind the verdict, then further details
ParameterGeometry StashAlge
PriceFreeFree
Rating4.7 (11 ratings) — better—
Positive reviews83.3% of reviews — better58.3% of reviews
Number of ratings11 — better—
Update frequencyEvery 6 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size3 MB18 MB
Age rating4+4+
DeveloperAnson Liu4TheKingdom Apps

Customer experience

Geometry Stash

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews54 reviews
Positive83.3%
Neutral1.9%
Negative14.8%

Alge

Written reviews24 reviews
Positive58.3%
Neutral4.2%
Negative37.5%

Bugs and requests

Geometry Stash

Reported bugs

2 issues
  • Wrong theorems
  • Minor bugs fixed

Requested features

7 requests
  • More detailed illustrations
  • More theorems
  • More definitions of terms
  • More activities for students
  • Interactive elements
Show 2 more
  • Teacher control section
  • More formulas and theorems (e.g., slope formulas, orthocenters)

Alge

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Geometry Stash

No in-app purchases

None

Alge

No in-app purchases

Questions

Is Geometry Stash free?
Geometry Stash is free to download, with no in-app purchases.
Is Alge free?
Alge is free to download, with no in-app purchases.
Do Geometry Stash or Alge have ads?
Neither Geometry Stash nor Alge shows ads.
Which is updated more often, Geometry Stash or Alge?
Geometry Stash ships an update every 6 weeks, and Alge every 5 months. Most recently, Geometry Stash was updated on October 31, 2026 and Alge on November 1, 2026.

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