Comparison

Exponential Growth Calculator vs Terpsi

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

Head to head
About

Exponential Growth Calculator

Instantly solve math problems and prepare for exams with step-by-step solutions. Visualize your function's development graphically by entering initial values, growth rates, or time. Access curated learning videos and manage your solutions.

Highlights
  • Instant step-by-step solutions
  • Graphical function development
  • Curated learning videos
  • Input feedback
  • Solution management
  • Anonymized data collection
Features
Read full description

Get homework done instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter initial value, growth rate, factor or time and see how your function develops graphically. HOW IT WORKS Enter your values in the appropriate fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All steps remain fully available. If you need many solutions in a short time, various purchase options are available. EXTRAS - Overview of how your inputs affect growth and decay - curated learning videos - feedback for incorrect inputs - manage your own solutions - introduction to the app CONTACT Questions and feedback via Discord or directly in the app review.

About

Terpsi

Features
Read full description

Terpsi turns the dance clips buried in your camera roll into moves you actually remember. LEARN IT, THEN KEEP IT Grade each clip as you learn it and Terpsi schedules the review for you. Recall sessions resurface the moves you are about to forget, right on time, so the work sticks instead of scrolling past. • Mastery grading that adapts to how well you know each move • Spaced recall that brings clips back at the perfect moment • A Profile that tracks your growing repertoire, study time, and a progress heatmap STUDY EVERY DETAIL • Step frame by frame in a distraction-free player • Trim to the exact move and keep the original forever • Reframe: crop, rotate, and mirror STAY ORGANIZED • Custom tags for style, figure, song, and teacher • A filter panel and multi-select bulk actions • Import from Photos, drag and drop, the in-app camera, screen recording, or the Share extension FREE, WITH ONE OPTIONAL UPGRADE Terpsi is free: import, record, tag, trim, frame-by-frame study, share, and backup and restore. A single one-time purchase, Terpsi Plus, unlocks the tools for serious practice: • Side-by-side Compare: play two clips in sync, your take next to a reference, and frame-step both together • iCloud sync: your clips and tags stay in sync across iPhone and iPad, and restore automatically on a new device • Apple Watch: send curated clips to your wrist and review choreography away from your phone • On the floor: your Apple Watch dance nights, read from Apple Health into your dance log. Logging a night by hand is free for everyone. • Home-screen widgets: your repertoire, activity, and due reviews at a glance Terpsi Plus is a one-time purchase, never a subscription. PRIVATE BY DESIGN Your videos stay on your device and in your private iCloud. They never touch our servers. No ads, no feed, no cross-app tracking. Made for social and partner dancers (salsa, bachata, kizomba, zouk, west coast swing, tango), plus heels, hip-hop, K-pop, ballet, choreography teams, teachers, and students.

Screenshots

Exponential Growth Calculator4 screens
Terpsi4 screens

Verdict

The call

The clearest difference is iOS requirement: Exponential Growth Calculator at 15.0 against Terpsi's 26.0. On price, update cadence, ads and in-app purchases 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. Exponential Growth Calculator sells 8 one-off in-app purchases and Terpsi sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Exponential Growth Calculator ships an update every 3 weeks, Terpsi every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
Exponential Growth Calculator versus Terpsi: the parameters behind the verdict, then further details
ParameterExponential Growth CalculatorTerpsi
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.0 — better26.0
Further details — not scored
Size180 MB16 MB
Age rating4+4+
DeveloperGlindemann, Sennoun, Langer GbRAlberto Cebada Aleu

In-app purchases

8 purchases

Exponential Growth Calculator

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 more
  • +150 User Tokens$0.99
  • +300 User Tokens$1.49
  • +4 Convenience Tokens / 6h, max. +8$1.59
  • Remove Ads$1.99
  • Lifetime Access$1.99
1 purchases

Terpsi

One-time1
  • Terpsi Plus$9.99

Questions

Is Exponential Growth Calculator free?
Exponential Growth Calculator is free to download, with in-app purchases available.
Is Terpsi free?
Terpsi is free to download, with in-app purchases available.
Do Exponential Growth Calculator or Terpsi have ads?
Neither Exponential Growth Calculator nor Terpsi shows ads.
Which is updated more often, Exponential Growth Calculator or Terpsi?
Exponential Growth Calculator ships an update every 3 weeks, and Terpsi every 2 weeks. Most recently, Exponential Growth Calculator was updated on November 3, 2026 and Terpsi on October 31, 2026.

Other comparisons