Lief App vs RunPrmpt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lief App
This smart patch discreetly tracks heart rate and variability to help you manage stress. It offers drug-free biofeedback exercises to train your body's stress response, promoting mindfulness and control.
- HRV tracking
- Heart rate monitoring
- Biofeedback exercises
- Stress response training
- On-demand stress relief
- Drug-free solution
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Lief is a discreet, clinically-accurate smart-patch that measures your heart rate and heart rate variability. It trains you to control your body’s natural stress response through guided, gentle, and safe biofeedback exercises. Lief’s on-demand stress relief intervention is a 100% drug-free solution to improve your health and to remain mindful and in control throughout your day.
RunPrmpt
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Turn your running records into words for thinking. RunPrmpt converts running data from Apple Health into prompts you can use with AI chat services. This app does not perform AI analysis itself. Instead, it generates text that you copy and paste into your preferred AI chat to receive insights or advice. RunPrmpt is designed for runners who want to go beyond simple tracking and turn their data into actionable ideas. Key Features ■ Apple Health Integration • Automatically reads running data (distance, duration, pace, heart rate, calories) ■ Four Prompt Types • Analysis: Understand trends and characteristics of your runs • Training Plan: Generate training ideas based on your data • Improvement Tips: Suggestions to improve performance • Data Only: Structured raw data optimized for AI input Privacy-Focused Design • Read-only access to Apple Health data • Generated prompts are copied only by user action • This app does not send data directly to any AI service • No external servers are used; all processing happens on-device • Your data is never shared with third parties How to Use 1. Grant access to Apple Health 2. Select running data 3. Choose a prompt type and generate text 4. Copy the prompt and paste it into your favorite AI chat Turn your running data into insight.
Screenshots
Verdict
The clearest difference is device support: Lief App at 3 against RunPrmpt's 1. Lief App also leads on iOS requirement (13.0 vs 26.0). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Lief App ships an update every 5 weeks, RunPrmpt monthly. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.
| Parameter | Lief App | RunPrmpt |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 44.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 80 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | BrainBot, Inc. | Kouki Saito |
Bugs and requests
Lief App
Reported bugs
19 issues- Unable to download latest update
- App bricked after update
- Stuck on pulsing screen
- Won't connect on iPhone or Mac
- Self-pacing (buzzing) not working
Show 14 moreShow fewer
- Annoying check-in feature cannot be turned off
- App cannot be opened
- Cancel subscription button not working
- App crashes upon opening
- App kicks user off after update
- App crashes multiple times when opened
- App does not reliably download data
- App unstable after recent updates
- App crashes, kills battery
- App chews through cell data
- App not connecting reliably to internet
- App does not work without connection
- Device keeps telling user they are stressed
- App takes a long time to load
Requested features
6 requests- Add button to turn off vibration
- Make subscription more affordable
- Sell device outright
- Provide clear instructions/manual
- Improve data breakdown and comparison
Show 1 moreShow fewer
- Allow adding notes for activities/moods
RunPrmpt
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Lief App
No in-app purchases
RunPrmpt
No in-app purchases









