Pace Adjuster vs Tact
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pace Adjuster
This app helps runners maintain their target pace during training and races. It provides real-time vibrational feedback to alert users if they are running too fast, too slow, or are on pace. Achieve your running goals with intelligent pace guidance.
- Set goal pace and distance
- Real-time vibrational feedback
- Alerts for too fast/slow pace
- Smart pace guidance
- Focus on energy conservation
- Improve running efficiency
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Pace Keeper: Keep Pace, Crush Your Goals Take the guesswork out of running and nail your pace every time! Whether you’re training for your first 5K, chasing a marathon PR, or just looking to run more efficiently, Pace Keeper is like having a personal coach right on your wrist. Simply set your goal pace and target distance, and Pace Keeper does the rest. With real-time feedback, your watch will gently vibrate to let you know when you’re: • Too fast – slow down and save energy for the finish. • Too slow – pick it up and get back on track. • Right on pace – keep cruising and stay confident. No more constantly checking your watch or second-guessing your speed. Smart Pace helps you stay focused, conserve energy, and train like a pro. Whether you’re running for fun, fitness, or competition, Pace Keeper will help you run smarter, improve faster, and cross the finish line feeling strong and accomplished. Your perfect run is just a vibration away!
Tact
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Ever had to stop running because of your knees? That's not giving up — it's changing direction. Brisk walking lets you train seriously without wearing down your joints, but Apple Watch has never given outdoor walking a real pace target. Intervals were built for running only, and even that wasn't great. Tact fills that gap. We designed it to stay quiet during your workout. If you're holding your target pace, your screen and your wrist stay silent. Only when you drift does your wrist tap out a 10-second rhythm to bring you back — then it goes quiet again. Not a trainer that keeps talking, but one that signals only when you need it. That signal is vibration, not sound. Built so you can feel your pace through your wrist alone, no earbuds needed, even in noisy surroundings. Pace itself is calculated from your walking rhythm, not GPS, so it holds steady even when the signal wavers. And when conditions are genuinely too uncertain to judge, it waits quietly instead of forcing a guess. Key features: • Pace-target intervals for outdoor walking — something Apple Watch has never offered • Silent by default, a 10-second vibration only when you drift — coaching without the nagging • Joint-friendly brisk-walking interval programs in 3 levels — Easy, Balanced, Challenge • Personalized stride learning that gets more accurate the more you walk • Set up once on iPhone, start with a single tap on your Watch • Heart rate, steps, and distance logged automatically to Apple Health • One-time purchase, no subscription — pay once, use forever Built for people who want to walk seriously, without straining their knees.
Screenshots
Verdict
The clearest difference is in-app purchases: Pace Adjuster at none against Tact's 1. On price, ads, device support and iOS requirement 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
Both are free to download. Tact sells 1 one-off in-app purchase. Pace Adjuster asks for nothing beyond the download.
| Parameter | Pace Adjuster | Tact |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 26.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Lapin | Sungjun Lim |
In-app purchases
Pace Adjuster
No in-app purchases
Tact
- Tact Tier1$4.99









