Comparison

Belly Flow vs StrengthBox

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

Head to head
About

Belly Flow

Features
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Belly Flow helps you keep track of your digestive health in daily life through simple logging and clear visualization. Follow your daily experiences, identify patterns, and gain insights into your well-being. Key Features: • Quick and easy logging of symptoms and bowel movements • Medication and dosage tracking • Water intake and other symptom monitoring • Visual overview with charts and trends • Comprehensive data export to share with healthcare providers • Available in Swedish and English! Perfect for: • Keeping track of your digestive health in daily life • Discovering connections between habits and how you feel • Logging medication and seeing how it affects your symptoms • Tracking water intake and other factors that impact your health • Exporting data to share with your doctor or dietitian New app – your feedback is valuable! Belly Flow is brand new, and we want to make it even better. Missing a feature or have suggestions? Get in touch! Your feedback helps us develop the app for everyone who wants to understand their digestive patterns.

About

StrengthBox

Features
Read full description

StrengthBox is the workout log for people who lift. Log sets in seconds, follow programs that add the weight for you, and watch three white lights come on when you hit a new record. PROGRAMMES THAT DO THE THINKING • Ready-made programs: 5/3/1, StrongLifts 5x5, PPL, Upper/Lower, Full Body, PHUL, Arnold Split, German Volume Training and more • Automatic progression: make every set and the weight goes up next session; miss and you repeat it • Percentage programs worked out from your max • Build your own, or follow one your personal trainer sends you FAST LOGGING ON THE GYM FLOOR • Sets, reps and weight in a few taps, with last session's numbers alongside • Plate calculator that shows exactly which plates go on the bar • Rest timer that starts when you tick off a set, also on the lock screen • Supersets, AMRAP, EMOM and For time with their own clock • Cardio intervals, like 6 × 400 m HYROX-STYLE HYBRID RACE • Simulate a full or half race: 8 × 1 km runs with stations in between • Weights for your division, splits for every segment and your best segments • The Hybrid Race Prep program, three days a week SEE HOW STRONG YOU ARE • Personal records detected automatically • Strength level compared with others of your age and weight class • Recovery map of the muscles you've trained • Monthly challenges, medals and a record board TRAIN WITH FRIENDS • Start a crew and see who's training right now • Give props to the others in your crew APPLE WATCH AND APPLE HEALTH • Tick off sets and keep an eye on your rest from your wrist • Sessions are saved to Apple Health EASY TO SWITCH • Import your training history from StrengthLog (CSV) and carry on where you left off STRENGTHBOX PREMIUM Free, you log as much as you like, follow one program and see the last five days of history. Premium unlocks unlimited programs, your full history and charts of your records. Try it free before you decide. No ads. Built in Sweden.

Screenshots

Belly Flow4 screens
StrengthBox4 screens

Verdict

The call

The clearest difference is in-app purchases: Belly Flow at none against StrengthBox's 2. StrengthBox's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads, 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

Both are free to download. StrengthBox sells 2 in-app purchases, starting at $9.99 per month. Belly Flow asks for nothing beyond the download.

UpkeepUpdate frequency

Belly Flow ships an update every 3 weeks, StrengthBox every 2 days. Both last shipped on November 5, 2026.

Scorecard2 real differences · 4 level
Belly Flow versus StrengthBox: the parameters behind the verdict, then further details
ParameterBelly FlowStrengthBox
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.6 — better16.0
Further details — not scored
Size23 MB53 MB
Age rating12+4+
DeveloperGabriella BrobergInnoveramera

In-app purchases

None

Belly Flow

No in-app purchases

2 purchases

StrengthBox

Subscriptions2
  • Månad$9.991 Month
  • Årsplan7 Days trial$59.991 Year

Questions

Is Belly Flow free?
Belly Flow is free to download, with no in-app purchases.
Is StrengthBox free?
StrengthBox is free to download, with in-app purchases available.
Do Belly Flow or StrengthBox have ads?
Neither Belly Flow nor StrengthBox shows ads.
Which is updated more often, Belly Flow or StrengthBox?
Belly Flow ships an update every 3 weeks, and StrengthBox every 2 days. Most recently, Belly Flow was updated on November 5, 2026 and StrengthBox on November 5, 2026.

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