Mesos vs PREJUDGE
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Mesos
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Mesos is a mesocycle programmer for lifters who already train by volume landmarks and RIR. It builds a hypertrophy block, adds volume week to week, calls your deload, and โ unlike most apps โ shows you why it made each call. Programming you can audit Most autoregulation tools hand you a number and ask you to trust it. Mesos shows its work. Every time it adjusts your sets, it tells you what it read from your logs โ your RIR, your soreness, your performance trend โ and how that maps to a volume change. If you disagree, you override it. The app adapts to your decision; it doesn't argue. Built around volume landmarks Set your MEV (minimum effective volume) and MRV (maximum recoverable volume) per muscle group, or start from sensible defaults and tune as you go. Mesos starts each muscle near its MEV and progresses toward MRV across the block, then deloads before recovery debt stalls your progress. RIR-driven progression Log each set with reps, load, and reps in reserve. Mesos reads the trend across sessions and adjusts the next week's volume from your actual performance โ not a fixed template. Sets get added when you're recovering well, held when you're not, and pulled back when the data says you're at your ceiling. Deloads when you need them, not on a fixed calendar The app watches for the signals that precede a stall โ rising RIR at the same load, soreness that doesn't clear, performance flattening โ and proposes a deload when they accumulate. You confirm or push the block one more week. Your call, with the evidence in front of you. A logger that stays out of the way The free tier is a full training logger: exercises, sets, reps, load, RIR, and per-muscle volume totals. No trial timer, no nag screens. Log your training as long as you like. Upgrade only when you want the programmer to plan and autoregulate the block for you. Free tier - Full set and session logger - Per-muscle weekly volume totals - MEV/MRV reference per muscle group Mesos Pro ($9.99/month or $69.99/year, 7-day free trial on yearly) - Automated mesocycle programming, MEV to MRV - RIR-based weekly volume autoregulation - Deload detection with explained reasoning - Per-set and per-muscle progression history - Full manual override on every recommendation Built for intermediate and advanced lifters who train by the numbers. If you already think in volume landmarks, RIR targets, and recoverable volume, Mesos speaks your language. Terms of Use (EULA): https://hasegi-project-privacy.github.io/mesos-policies/terms-of-service-en.html Privacy Policy: https://hasegi-project-privacy.github.io/mesos-policies/privacy-policy-en.html
PREJUDGE
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PREJUDGE runs your posing round the way the head judge does: every mandatory called out loud, held on the clock, in the order your division is judged, while your phone films you. Built on the public IFBB Pro League rules for Open / 212, Classic Physique, Men's Physique, Wheelchair, Bikini, Wellness, Figure, Women's Physique, Women's Bodybuilding and Fitness. ON THE CLOCK - The voice calls each pose and each quarter turn, so your eyes stay up and your hands stay free. - A stage you read from three metres: the pose, the seconds left, what comes next. - Set the rounds, the hold, the rest and the time between poses, and how loud the calls are. - Stop takes a deliberate hold, so a stray tap never ends a round. - Pause and skip with the volume buttons or a Bluetooth shutter clicker (iOS 17.2 and later, turn it on in Settings). FILMED - Record every round with the front or back camera. - The video comes out with the pose name, the countdown and the round burned in. Save it to Photos. - Stance guides on the camera preview for the middle of the stage, your shoulders and your hips. Never in the video. - If a recording stops, the app says so and why. Leave the app mid round and the round waits for you. TOWARD SHOW DAY - Set your show date: Practice counts down the weeks, with a reminder at 12 and at 8 weeks out. - Every session goes in your log, with your notes. PREJUDGE PRO - Comparison mode: every hold a different length, the odd pose called again, "Hold" before the release. Like a real prejudging. - A prep program that grows your holds and rounds week by week toward show day. - Your own routines on your own music, laid out on a timeline, with practice speed, counts and a show ready music export. - Every division at once, instead of one at a time. - Jump to any pose in your video and play it back in slow motion. - A clean video without the overlay, and no PREJUDGE mark on any video. - The drill library: 60 second mandatories, 60 second posedown, the model walk. - Every angle of every pose, every stat after a round, and your whole history instead of the last 7 days. FREE, AND IT STAYS FREE One division at a time, which you can switch whenever you like: its mandatories with the voice and the timer, recording with the burned-in overlay (with a small PREJUDGE mark), the stance guides, the remote, the show countdown and the last 7 days of your log. PRIVATE BY DESIGN No account. Your videos, sessions and settings stay on your phone, unless you turn on iCloud backup for your videos. Practice works in airplane mode. PREJUDGE Pro is an auto-renewing subscription, monthly or yearly. Payment is charged to your Apple ID when you confirm the purchase. It renews automatically unless you turn it off at least 24 hours before the end of the current period, and you can manage or cancel it in your App Store account settings. Terms: https://prejudge.app/terms Privacy: https://prejudge.app/privacy Based on the public IFBB Pro League competition rules. Not affiliated with or endorsed by the IFBB Pro League.
Screenshots
Verdict
The clearest difference is device support: Mesos at 3 against PREJUDGE's 1. Mesos also leads on iOS requirement (13.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Mesos sells 5 in-app purchases, starting at $9.99 per month and PREJUDGE sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Mesos | PREJUDGE |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 13.0 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 19 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Hasegi Inc. | Calvin Wormer |
In-app purchases
Mesos
- Mesos Pro (Monthly)2 variants$9.991 Month
- Mesos Pro (Yearly)7 Days trial2 variants$69.991 Year
- Delts Specialization Pack2 variants$4.99
- Arms Specialization Pack2 variants$4.99
- Posterior Chain Pack2 variants$4.99
PREJUDGE
- PREJUDGE Pro$8.991 Month
- PREJUDGE Pro$49.991 Year
- PREJUDGE Pro7 Days trial$69.991 Year





