FormGuru vs RPE 8 (slowdown tracker)
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
FormGuru
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Level up your lifting game with FormGuru - the smartest way to analyze and improve your compound lifts. Starting with the big four: squats, deadlifts, bench press, and OHP. **Why FormGuru Hits Different:** 1. Keep Your Hype Music Playing No more choosing between recording and your PR playlist. Unlike your phone's camera, FormGuru lets you capture lifts while keeping your music blasting. 2. Smart Recording That Just Works FormGuru's AI knows exactly when you start and finish your set. Walk up to the bar, hit record, and lift. When you check your phone, your clip will be ready and cued to the perfect starting point. 3. Next-Level Form Analysis β’ Break down each rep with precise timing and velocity data β’ Spot form changes between your first and last rep β’ Track consistency in your warm-ups and fatigue in your working sets β’ Compare reps side-by-side to dial in your technique How It Works FormGuru uses advanced 3D motion tracking (the same tech in your iPhone's Face ID) to capture your movement patterns and provide instant, actionable feedback on your lifts. Ready to level up your training? Drop any questions or feedback to pete@formguru.com
RPE 8 (slowdown tracker)
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Slowdowns in free tier. Works best in 4-20 repetition range and under a minute of time under tension. Limitations: Does not track well true grinder reps. Slower than 20 mm/s. Reps with a pause mid rep are not tracked. Free tier displays slowdowns. The number turns red when the slowdown is likely above RPE 8 for that repetition range. Paid tier displays average repetition velocity. Does not collect or send any of your data, all local processing.
Screenshots
Verdict
The clearest difference is device support: RPE 8 (slowdown tracker) at 3 against FormGuru's 1. RPE 8 (slowdown tracker) also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
FormGuru ships an update monthly, RPE 8 (slowdown tracker) fortnightly. The most recent releases landed on September 20, 2026 and September 13, 2026 respectively.
| Parameter | FormGuru | RPE 8 (slowdown tracker) |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Fortnightly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPod, Apple Watch β better |
| Requires iOS | 17.6 | 15.6 β better |
| Further details β not scored | ||
| Size | 27 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter j Andersen | εΎ·ε― ι |
In-app purchases
FormGuru
No in-app purchases
RPE 8 (slowdown tracker)
No in-app purchases
Questions
Is FormGuru free?
Is RPE 8 (slowdown tracker) free?
Do FormGuru or RPE 8 (slowdown tracker) have ads?
Which is updated more often, FormGuru or RPE 8 (slowdown tracker)?
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