Comparison

Verbform vs RhythmReactor

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

Head to head
About

Verbform

Master English irregular verbs with focused drills and spaced repetition. Track your progress and improve grammar for exams and professional use. Fits into a busy schedule with short daily sessions.

Highlights
  • Drills 200 common irregular verbs
  • Tests base, past simple, past participle
  • Spaced repetition learning
  • 5-minute daily sessions
  • Progress tracking and mastery states
  • Home screen widget
Features
Read full description

Stop saying "I have went." Every English learner knows irregular verbs are the hardest part — and most apps bury them inside something bigger. Verbform is the focused tool you've been missing. WHAT VERBFORM DOES • Drills the 200 most common English irregular verbs, ranked by real-world frequency • Tests all three forms — base, past simple, past participle — in sentence context • Uses spaced repetition tuned for the interference patterns that make irregular verbs hard • Fits one session into five minutes a day • Tracks every verb's mastery state in a clean visual library • Keeps today's verb and your streak on your home screen widget WHO IT'S FOR Adult English learners at A2 to C1 level. Professionals who trip on past participles under pressure. Students preparing for IELTS or TOEFL. Anyone who has quietly kept a list of verbs they keep getting wrong and wants a real tool to fix it. HOW IT WORKS Open the app. Take a 90-second placement quiz. Verbform shows you exactly which of the top 50 verbs you already know and which ones need work. Your daily session starts the next morning. FREE • Top 50 irregular verbs — the ones you use every single day • Full spaced repetition engine • Streak tracking and daily reminders • Placement quiz • Verb library with mastery tracking • Exercises: Fill in the blank, Odd one out, Quick Match PREMIUM • All 200 irregular verbs — including the Tier 2, 3, and 4 verbs that separate fluent from fluent-enough • Home screen widget with today's verb and streak • Verb detail cards with IPA pronunciation, example sentences • Every future feature by default • Exercises: Fill the story, Give both forms, Name the verb, Spot the error Five minutes a day. Two hundred verbs. One focused tool. Download Verbform and fix the irregular verb problem for good. LEGAL Privacy Policy: https://verbform.ftp27.dev/privacy Terms of Use: https://verbform.ftp27.dev/terms

About

RhythmReactor

Features
Read full description

RhythmReactor is a rhythmic dictation app that provides students with foundational experience in both 4/4 and 12/8. Students drag the tiles that correspond to what they hear. Rhythms become more complex (including tied notes) in the upper reactors.

Screenshots

Verbform4 screens
RhythmReactor3 screens

Verdict

The call

The clearest difference is in-app purchases: RhythmReactor at none against Verbform's 2. RhythmReactor also leads on iOS requirement (9.3 vs 17.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Verbform sells 2 in-app purchases, starting at $3.99 per month. RhythmReactor asks for nothing beyond the download.

UpkeepUpdate frequency

Verbform ships an update monthly, RhythmReactor every 2 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 7 level
Verbform versus RhythmReactor: the parameters behind the verdict, then further details
ParameterVerbformRhythmReactor
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.09.3 — better
Further details — not scored
Size17 MB36 MB
Age rating4+4+
DeveloperAleksey CherepanovBrian Wis

In-app purchases

2 purchases

Verbform

Subscriptions2
  • Monthly Premium$3.991 Month
  • Yearly Premium7 Days trial$24.991 Year
None

RhythmReactor

No in-app purchases

Questions

Is Verbform free?
Verbform is free to download, with in-app purchases available.
Is RhythmReactor free?
RhythmReactor is free to download, with no in-app purchases.
Do Verbform or RhythmReactor have ads?
Neither Verbform nor RhythmReactor shows ads.
Which is updated more often, Verbform or RhythmReactor?
Verbform ships an update monthly, and RhythmReactor every 2 weeks. Most recently, Verbform was updated on October 6, 2026 and RhythmReactor on October 5, 2026.

Other comparisons