Comparison

Ambryx vs Pacer

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

Head to head
About

Ambryx

Features
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Ambryx is a private walking companion for iPhone and Apple Watch. It is built to help you walk with a plan and finish with momentum through smart goals, real-time sessions, and cross-device progress visibility. Ambryx focuses on everyday consistency: - Goals that feel achievable and motivating - Real-time walking sessions with clear live metrics - Visibility across the surfaces you already check all day - Recovery for walks you forgot to start manually WHAT YOU CAN DO WITH AMBRYX Build a goal system that works for your life - Choose daily goals from beginner to ambitious ranges - Get automatic weekly targets and helpful progress context - Update your goals anytime as your routine changes Track active walks in real time - Start a walk on iPhone or Apple Watch - See live elapsed time, steps, distance, and workout progress - Finish with an immediate summary so progress feels concrete Train with Japanese interval walking - Structured workout mode designed to boost your walking fitness - Configure custom intervals with fast and easy phases - Get real-time pace coaching with distinct audio cues - Perfect for tempo training and building endurance Get credit for forgotten walks - Ambryx detects qualifying walks you did not manually start - Review detected walks in a clean prompt flow - Save or decline each walk without clutter See progress everywhere - Day, week, and month progress views in the app - Home Screen and Lock Screen widgets - Live Activity and Dynamic Island updates during active sessions - Apple Watch companion experience with synced progress - Watch complications for quick glance updates Stay supported without notification overload - Goal reminders and activity nudges - Quiet Hours controls for better timing and less noise - Clear permission and recovery flows when settings need attention Designed with privacy at the center - Your health data stays in Apple Health and your iCloud account - No third-party data sharing for your walk history - Data access is controlled by the Health permissions you choose Ambryx is for people who want a practical, reliable walking system they can actually stick with. https://isolift.app/ambryx/privacy

About

Pacer

Features
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Most step counters tell you you're behind at 10pm. Pacer tells you at 10am. Pacer spreads your daily step goal across your active hours and shows whether you're ahead or behind pace right now, on every glance. A 10,000-step goal isn't a midnight cliff. By 3pm you can know if you're on track. WHAT YOU GET • A live ahead/behind number on your wrist — "+420" or "-180", not a percentage. • Three watch-face complications: rectangular (steps + delta + pace bar), Pacer Steps (circular), and Pacer Delta (circular). • Custom active hours. Active from 10am? Winding down by 6pm? Set it once. • Gentle behind-pace nudges if you slip off pace PRIVACY Pacer collects nothing. HealthKit step counts stay on your watch — no servers, no accounts, no analytics, no third-party SDKs. DESIGNED FOR APPLE WATCH Built with SwiftUI and Swift 6 for smooth, battery-friendly performance. HOW IT WORKS Set a daily goal and an active window (default 9am–8pm). Every minute Pacer computes your on-pace target, a moving line from 0 at your start time to your goal at your end time. The delta between your actual steps and that target is your dashboard, your complication, your nudge. PERFECT FOR • Walkers who want nudges, not alarms • Shift workers with non-standard hours • Anyone trying to get their steps in for the day, every day

Screenshots

Ambryx4 screens

Verdict

The call

The clearest difference is price: Ambryx at Free against Pacer's $3.99. Pacer's advantage is in-app purchases (none vs 2) and chart position (#195 vs unranked). On update cadence, 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

Ambryx is free to download; Pacer costs $3.99 up front. Ambryx sells 2 one-off in-app purchases. Pacer asks for nothing beyond the download.

UpkeepUpdate frequency

Ambryx ships an update monthly, Pacer every 2 months. The most recent releases landed on September 11, 2026 and September 7, 2026 respectively.

Scorecard4 real differences · 3 level
Ambryx versus Pacer: the parameters behind the verdict, then further details
ParameterAmbryxPacer
PriceFree — better$3.99
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
Best chart rank—#195 — better
DevicesiPhone, Apple WatchiPhone, iPod, Apple Watch — better
Requires iOS18.613.0 — better
Further details — not scored
Size23 MB2 MB
Age rating4+4+
DeveloperIso Lift, LLCAditya Gupta

In-app purchases

2 purchases

Ambryx

One-time2
  • Ambryx Free TrialFree
  • StrideFlow Pro$2.99
None

Pacer

No in-app purchases

Questions

Is Ambryx free?
Ambryx is free to download, with in-app purchases available.
Is Pacer free?
Pacer costs $3.99, with no in-app purchases.
Do Ambryx or Pacer have ads?
Neither Ambryx nor Pacer shows ads.
Which is updated more often, Ambryx or Pacer?
Ambryx ships an update monthly, and Pacer every 2 months. Most recently, Ambryx was updated on September 11, 2026 and Pacer on September 7, 2026.

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