Comparison

One Space vs RetaPro

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

Head to head
About

One Space

Features
Read full description

Manage ‘Your Journey’ at One Space from your mobile device. Manage your bookings & check-in with us for all sessions, classes, studio use for your own training, consults and events. Manage your account, make payments & purchases. Get access to exclusive member content and communicate with Us. Then share ‘Your Journey’ with your friends on socials! Body Mind & Soul. Penny. Visit our website at http://www.onespacewellness.com

About

RetaPro

This app helps users meticulously track their retatrutide treatment. It allows logging doses, managing vials, calculating reconstitutions, and monitoring progress through food logging, weight tracking, and progress photos. Smart reminders ensure no dose is missed.

Highlights
  • Retatrutide dose logging
  • Vial management and tracking
  • Reconstitution and dose calculation
  • Protocol and cycle timeline
  • Personalized meal and nutrient targets
  • Weight and body composition monitoring
  • Progress photo comparison
  • Smart injection reminders
Features
Read full description

RetaPro: Your Retatrutide Companion The most complete tracker built exclusively for retatrutide. Log every dose, monitor your vials, calculate reconstitution, and stay on top of your full retatrutide protocol — all in one place. Retatrutide Dose Log & Injection Tracker Log every retatrutide injection with a single tap. Track your dose amount, injection site rotation, and the vial you're drawing from. RetaPro keeps a complete injection log so you always know when your last dose was, how much remains in each vial, and where you injected last. Reconstitution & Vial Calculator Take the guesswork out of retatrutide preparation. RetaPro's built-in peptide calculator helps you calculate reconstitution volumes, BAC water ratios, and exact dose per syringe draw — so every injection is precise. Retatrutide Cycle & Protocol Tracker Track your complete retatrutide protocol over time. Set cycle start dates, log dose escalations, and review your full injection history at a glance. Built for precision, not guesswork. Log Meals Your Way Food logging built for retatrutide users. Search a vast food database, scan barcodes, photograph your plate, or describe your meal by voice. Your daily protein, fiber, water, and calorie targets are calculated specifically for you — based on your body stats, activity level, and treatment plan. Monitor Your Weight & Body Composition Add weight entries manually or sync with Apple Health. Track your trend over time with clear charts, monitor your BMI, and see exactly how your body is responding to your retatrutide treatment. Progress Photos Capture your transformation with in-app progress photos. Compare before and after side-by-side and see the changes your scale doesn't fully capture. Smart Injection Reminders Never miss a dose. RetaPro sends smart reminders when your next retatrutide injection is due, based on your personal dosing schedule. Also get nudges for meals, hydration, and activity. Home Screen Widgets Track your injection status, daily protein, water, and steps without opening the app. Widgets for iOS keep your retatrutide schedule visible at a glance. Key Features - Retatrutide dose log with injection site rotation tracking - Vial tracker: monitor remaining volume across multiple vials - Reconstitution calculator (BAC water, mcg/mg, exact syringe draw) - Retatrutide cycle tracker with full dose history and protocol timeline - Meal logging via search, barcode scan, AI photo recognition, and voice - Personalized protein, fiber, water, and calorie targets - Weight trend charts with BMI tracking - Progress photo timeline with side-by-side comparison - Apple Health integration - Home screen widgets for iOS - Full offline support - Available in 40+ languages RetaPro is a personal tracking tool and is not a medical device. Always follow your healthcare provider's guidance regarding your treatment. Apple Terms of Use Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

One Space4 screens
RetaPro4 screens

Verdict

The call

The clearest difference is in-app purchases: One Space at none against RetaPro's 2. One Space also leads on iOS requirement (13.0.0 vs 15.5). RetaPro's advantage is update cadence (monthly vs every 36 months). On price, 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. RetaPro sells 2 in-app purchases, starting at $39.99 per year. One Space asks for nothing beyond the download.

UpkeepUpdate frequency

One Space ships an update every 36 months, RetaPro monthly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
One Space versus RetaPro: the parameters behind the verdict, then further details
ParameterOne SpaceRetaPro
PriceFreeFree
Rating—4.6 (48 ratings) — better
Positive reviews—40.0% of reviews
Number of ratings—48 — better
Update frequencyEvery 36 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0.0 — better15.5
Further details — not scored
Size25 MB103 MB
Age rating4+17+
DeveloperP&S Property Investments Pty LimitedAgora Labs Ltda.

In-app purchases

None

One Space

No in-app purchases

2 purchases

RetaPro

Subscriptions1
  • Yearly Plan$39.991 Year
One-time1
  • Lifetime Plan$39.99

Questions

Is One Space free?
One Space is free to download, with no in-app purchases.
Is RetaPro free?
RetaPro is free to download, with in-app purchases available.
Do One Space or RetaPro have ads?
Neither One Space nor RetaPro shows ads.
Which is updated more often, One Space or RetaPro?
One Space ships an update every 36 months, and RetaPro monthly. Most recently, One Space was updated on November 3, 2026 and RetaPro on November 5, 2026.

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