Comparison

Caltopia vs TreadSimple

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

Head to head
About

Caltopia

This app offers private, offline calorie and macro tracking with an on-device AI coach for personalized insights and recipes. It supports voice logging, intermittent fasting, and GLP-1 tracking, with data securely stored on your device. Import data from other services and export your logs in various formats.

Highlights
  • Offline calorie and macro tracking
  • On-device AI coach for insights and recipes
  • Voice logging and nutrition label OCR
  • Intermittent fasting timer
  • GLP-1 tracking
  • Data import from MyFitnessPal
  • Adaptive calorie and macro targets
Features
Read full description

Caltopia is a private, offline calorie tracker, macro counter, and food diary — with an on-device AI coach, voice logging, intermittent fasting, and GLP-1 tracking built in. Try everything free for 7 days, then $1.99/month — or pay once ($20) and own it for life. No ads, no accounts, no third-party cloud. Your data stays on your phone. 48,000 FOODS, OFFLINE A USDA + branded-foods database downloads on first launch (~4 MB). After that, search, logging, and charts all work with no internet — on a flight, in the gym, anywhere. LOG A MEAL FIVE WAYS • Barcode scan for packaged food • Voice: "two eggs and a slice of toast" — parsed on-device • Photo of your meal — on-device AI suggests it • Nutrition-label OCR • One tap on a recent food Food data: USDA (public domain, bundled offline) + Open Food Facts. ON-DEVICE AI COACH Ask about your own log — "how much protein did I average?" — and get answers from your data (observations, never medical advice). Say what's in your fridge and get a recipe you can log or save. Uses Apple Intelligence where available, a built-in offline cookbook everywhere else. VOICE LOGGING Tap the mic or the Home Screen widget and just talk. It understands quantities and units — even "a beef stick, 100 calories." Your voice never leaves the phone. INTERMITTENT FASTING A live fasting timer in your calorie ring and on the Lock Screen (Dynamic Island). 16:8, 18:6, 20:4, OMAD, or any custom target, with trends and weekly summaries. TRACK WHAT MATTERS TO YOU Workouts, blood glucose, and GLP-1 (doses, injection-site rotation, side effects) — all user-entered, no medical advice. Build your own recipes and plan meals ahead. ADAPTIVE TARGETS Start with Mifflin–St Jeor BMR + activity multipliers. Turn on Adaptive TDEE and Caltopia learns your real calorie burn from your logs and weight trend, adjusting targets automatically. Pick a goal: lose, maintain, gain, or recomp. INSIGHTS & WIDGETS A 13-week logging heatmap, calorie/macro/water/weight trend charts, and weekly summaries. Home Screen and Lock Screen widgets for calories, macros, water, fasting, and your streak. STAY MOTIVATED 60 achievements, weekly quests, daily challenges, streaks, XP, and levels — fun on top of the data, not in place of it. PRIVATE BY DEFAULT No account. No login. No analytics or ad trackers. Data is stored locally with Apple's SwiftData. Optional backup goes only to your own private iCloud, never our servers. Two-way Apple Health sync. Full Excel export and re-import anytime. PRICING & FREE TRIAL Start with a 7-day free trial — every feature unlocked. Then Caltopia Pro is $1.99/month, or unlock for life with a single $20 purchase. The monthly plan auto-renews unless canceled at least 24 hours before the period ends; manage or cancel anytime in your App Store settings. Lifetime is a one-time purchase, no recurring charges. Privacy Policy: https://caltopia.org/privacy/ Terms of Use (EULA): https://caltopia.org/terms/ Caltopia is a wellness self-tracking tool. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a healthcare professional before changing your diet, exercise, or medication routine.

About

TreadSimple

This app transforms your Bluetooth treadmill and heart-rate monitor into a workout dashboard on your iPhone. It allows you to connect, record, review, and export your indoor runs locally, with optional cloud syncing.

Highlights
  • Connects to compatible Bluetooth FTMS treadmills
  • Pairs with Bluetooth heart-rate monitors
  • Tracks speed, incline, distance, time, calories, and heart rate
  • Supports Live Activities and TV Mode for display
  • Saves workout history locally on iPhone
  • Exports to Apple Health and Strava
  • Offers custom workout screens (Pro)
Read full description

Your run, your way. TreadSimple turns a compatible Bluetooth treadmill and heart-rate monitor into a focused workout dashboard for iPhone. Connect, record, review, and export without creating a TreadSimple account or putting your workout history in a developer-run database. BUILT FOR THE BELT • Connect to compatible treadmills using the Bluetooth FTMS standard • Pair a standard Bluetooth heart-rate monitor at the same time • Follow speed, incline, distance, time, calories, heart rate, zones, and laps • Keep recording through ordinary connection interruptions and recover unfinished workouts SEE THE WORKOUT YOUR WAY • Use a clear, high-contrast Activity View in portrait or landscape • Follow supported workouts from the Lock Screen and Dynamic Island with Live Activities • Put a read-only live dashboard on a compatible AirPlay display with TV Mode • Respect system settings for Dynamic Type, VoiceOver, dark mode, and reduced motion SAVE LOCALLY. SHARE BY CHOICE. • Keep workout history on your iPhone • Save completed indoor runs to Apple Health • Upload route-free indoor runs to Strava • Share standards-based FIT files without fabricated GPS data • Keep automatic sync off until you enable it for each destination TREADSIMPLE PRO Free includes two workout starts each week, the standard Activity View and TV Mode, local history, individual FIT sharing, Apple Health, and Strava. TreadSimple Pro adds unlimited recording, up to five custom workout screens, a custom TV dashboard, animated backgrounds, custom heart-rate zones and lap distance, and full-history FIT export. Monthly and annual TreadSimple Pro subscriptions renew automatically unless canceled. Eligible customers can start a seven-day free trial. Manage or cancel in App Store account settings. Locally stored history and individual exports remain available if Pro expires. Compatibility depends on the treadmill model and its Bluetooth FTMS implementation. TreadSimple records and displays workout data; it does not control treadmill speed or incline and is not a medical device. Privacy Policy: https://treadsimple.com/privacy/ Terms & Safety: https://treadsimple.com/terms/

Screenshots

Caltopia4 screens
TreadSimple4 screens

Verdict

The call

The clearest difference is monetization model: TreadSimple at freemium against Caltopia's paid. TreadSimple also leads on update cadence (every 2 days vs every 3 days) and iOS requirement (15.0 vs 17.0). Caltopia's advantage is ratings volume (7 vs 1). On price, rating, 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. Caltopia sells 1 one-off in-app purchase and TreadSimple sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Caltopia against 5.0 for TreadSimple. That said, the two scores are not equally well evidenced: Caltopia has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Caltopia ships an update every 3 days, TreadSimple every 2 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Caltopia versus TreadSimple: the parameters behind the verdict, then further details
ParameterCaltopiaTreadSimple
PriceFreeFree
Rating5.0 (7 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings7 — better1
Update frequencyEvery 3 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFreemium — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size10 MB25 MB
Age rating12+4+
DeveloperCOLE SHANE WILLIAMSJames Allen

Customer experience

Caltopia

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

TreadSimple

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Caltopia

One-time1
  • Caltopia Unlock$9.99
2 purchases

TreadSimple

Subscriptions2
  • TreadSimple Pro Monthly7 Days trial$2.991 Month
  • TreadSimple Pro Annual7 Days trial$29.991 Year

Questions

Is Caltopia free?
Caltopia is free to download, with in-app purchases available.
Is TreadSimple free?
TreadSimple is free to download, with in-app purchases available.
Which has better reviews, Caltopia or TreadSimple?
Caltopia and TreadSimple are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.
Do Caltopia or TreadSimple have ads?
Neither Caltopia nor TreadSimple shows ads.
Which is updated more often, Caltopia or TreadSimple?
Caltopia ships an update every 3 days, and TreadSimple every 2 days. Most recently, Caltopia was updated on October 8, 2026 and TreadSimple on October 10, 2026.

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