Comparison

Flex Metronome vs FirstBrain

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

Head to head
About

Flex Metronome

Create complex rhythm patterns like polyrhythms, swing, and ethnic grooves with this intuitive metronome app. Save your custom creations and utilize a library of editable presets for your musical needs.

Highlights
  • Create polyrhythms
  • Implement swing rhythms
  • Design ethnic grooves
  • Support odd time signatures
  • Save custom patterns
  • Edit preset rhythms
Features
Read full description

Flex Metronome is a flexible and easy-to-use app that lets you create a wide variety of rhythm patterns—such as polyrhythms, swing, ethnic grooves, and odd time signatures—with ease. You can save your custom patterns, and the app also includes a rich collection of editable preset rhythms.lex Metronome is a flexible and easy to use metronome app which enables you to make various kinds of rhythm patterns such as polyrhythm, swing, ethnic rhythm, unusual time signature, etc. very easily. You can save the rhythm pattern you created, and there are lots of preset rhythm patterns which you can edit and save. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FirstBrain

Features
Read full description

FirstBrain helps parents unlock their child’s potential in just 10–15 minutes a day. Backed by science, FirstBrain offers short, structured activities designed for children aged 1–8. Parents guide the sessions while children stay completely screen-free, using simple everyday objects like blocks, cups, and cards. This app requires an active FirstBrain Pro subscription to use. No free content. What makes FirstBrain different? • Evidence-based framework: Activities target 5 key areas of intelligence — Language, Attention, Memory, Inhibition, and Reasoning. • Daily routine made easy: 2–5 quick activities, each lasting 2–3 minutes, fit seamlessly into your family’s day. • Screen-free for children: Kids interact with the real world, while parents use the app for prompts, timers, and tracking. • Personalized progression: Difficulty adapts to your child’s pace. Pass an activity to level up, retry if needed. • Positive endings: Sessions follow a “quit on a win” approach to keep motivation high. Why it matters: Early, consistent practice strengthens core cognitive skills — focus, problem-solving, and self-control — that ripple out into lifelong learning advantages. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.firstbrain.me/privacy

Screenshots

Flex Metronome3 screens
FirstBrain4 screens

Verdict

The call

The clearest difference is update cadence: FirstBrain at fortnightly against Flex Metronome's every 3 months. Flex Metronome's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.2). On price, 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. Flex Metronome sells 2 in-app purchases, starting at $0.99 per month and FirstBrain sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Flex Metronome ships an update every 3 months, FirstBrain fortnightly. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Flex Metronome versus FirstBrain: the parameters behind the verdict, then further details
ParameterFlex MetronomeFirstBrain
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better18.2
Further details — not scored
Size5 MB9 MB
Age rating4+4+
DeveloperYASUHIRO SEKINERomain,Raphael BATLLE

In-app purchases

2 purchases

Flex Metronome

Subscriptions2
  • Premium Monthly$0.991 Month
  • Premium Yearly$9.991 Year
2 purchases

FirstBrain

Subscriptions2
  • Monthly Plan$8.991 Month
  • Yearly Plan3 Days trial$34.991 Year

Questions

Is Flex Metronome free?
Flex Metronome is free to download, with in-app purchases available.
Is FirstBrain free?
FirstBrain is free to download, with in-app purchases available.
Do Flex Metronome or FirstBrain have ads?
Neither Flex Metronome nor FirstBrain shows ads.
Which is updated more often, Flex Metronome or FirstBrain?
Flex Metronome ships an update every 3 months, and FirstBrain fortnightly. Most recently, Flex Metronome was updated on October 21, 2026 and FirstBrain on October 28, 2026.

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