Comparison

OneCal Calorie Tracker vs Simple Weight Tracker App

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

Head to head
About

OneCal Calorie Tracker

Features
Read full description

OneCal is a science-based calorie tracker for people who don’t want to think about weight loss—they just want to do it. No macros to calculate, no barcode scanning, no friend feeds, no badges. Enter the calories that you eat, see your target, and move on. It’s calories in, calories out—fast to log, simple to follow—so you can spend less time in an app and more time living your life. This app provides general information only and is not medical advice. Consult a qualified healthcare professional before making changes to your diet or exercise. OneCal does not diagnose, treat, cure, or prevent any condition and disclaims liability for decisions made based on app data.

About

Simple Weight Tracker App

Easily log your daily weight and visualize your progress over time. This app helps you spot trends, build healthy habits, and achieve your weight goals with a simple, private interface. Unlock advanced features like charts and unlimited history with a subscription.

Highlights
  • Daily weight logging
  • Progress over time visualization
  • Trend spotting
  • Goal setting (lose, gain, maintain)
  • Data export
  • 100% private data storage
Read full description

Simple Weight Tracker is the easiest way to log your weight every day and watch your progress over time. Why daily tracking works: • People who weigh themselves daily are 7x more likely to reach their goal • Spot trends before they become problems • Build one tiny habit instead of complicated diets Features: • Simple weight chart with trends • Daily history at a glance • Lose, gain, or maintain weight goals • Export your data anytime • 100% private. Your data never leaves your device Weight Tracker is free to download. Access to charts, trend analysis and unlimited history requires an auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://simpleweighttracker.app/privacy

Screenshots

OneCal Calorie Tracker3 screens
Simple Weight Tracker App4 screens

Verdict

The call

The clearest difference is in-app purchases: OneCal Calorie Tracker at none against Simple Weight Tracker App's 2. Simple Weight Tracker App's advantage is ads (none vs shown) and iOS requirement (15.1 vs 18.6). On price, update cadence 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. Simple Weight Tracker App sells 2 in-app purchases, starting at $9.99 per 7 days. OneCal Calorie Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

OneCal Calorie Tracker ships an update every 9 days, Simple Weight Tracker App every 10 days. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 6 level
OneCal Calorie Tracker versus Simple Weight Tracker App: the parameters behind the verdict, then further details
ParameterOneCal Calorie TrackerSimple Weight Tracker App
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 9 days — betterEvery 10 days
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.615.1 — better
Further details — not scored
Size5 MB40 MB
Age rating4+17+
DeveloperMarcus SpitzmillerPablo Sanchez Lorente

In-app purchases

None

OneCal Calorie Tracker

No in-app purchases

2 purchases

Simple Weight Tracker App

Subscriptions2
  • Pro Weekly$9.997 Days
  • Pro 3 Months$19.993 Months

Questions

Is OneCal Calorie Tracker free?
OneCal Calorie Tracker is free to download, with no in-app purchases.
Is Simple Weight Tracker App free?
Simple Weight Tracker App is free to download, with in-app purchases available.
Do OneCal Calorie Tracker or Simple Weight Tracker App have ads?
OneCal Calorie Tracker shows ads; Simple Weight Tracker App does not.
Which is updated more often, OneCal Calorie Tracker or Simple Weight Tracker App?
OneCal Calorie Tracker ships an update every 9 days, and Simple Weight Tracker App every 10 days. Most recently, OneCal Calorie Tracker was updated on October 3, 2026 and Simple Weight Tracker App on October 2, 2026.

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