ReactionX vs Heed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReactionX
Enhance your athletic performance with this app, designed to be used with specialized training lamps. Improve your speed and reaction times through professional sports training exercises.
- Professional sports training
- Speed improvement
- Reaction time enhancement
- Compatible with training lamps hardware
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Must used with Reaction training lamps hardware. Help you on professional sport training. Improve your speed and reaction.
Heed
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Heed turns meditation into something you track and keep up with other people, the way runners and cyclists do with their training. Train your attention like you train your body, and keep it up because your people see you show up. ONE FEED FOR EVERY SESSION Sit with Heed's silent timer, or meditate in any app that saves Mindful Minutes to Apple Health. Connect Health once and every session logs itself, whichever app it came from. WHAT KEEPS IT GOING - Day and week streaks you will want to protect - A feed of people who cheer instead of scroll - A ready-to-share note with every session - Private account and per-session visibility when you prefer quiet WHY IT WORKS Attention is trainable. Randomized trials link regular practice to sharper focus, better working memory, and lower stress. And habits hold better together: people persist far longer when someone trains alongside them. Heed combines both, real training kept up socially. Effects are modest and Heed is not a medical treatment. It is a training log for your mind. Heed reads only Mindful Minutes from Apple Health, writes nothing back unless you ask it to, shows no ads, and never sells your data. Delete your account and data any time in the app.
Screenshots
Verdict
ReactionX and Heed are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | ReactionX | Heed |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 34 MB | 2 MB |
| Age rating | 4+ | 17+ |
| Developer | 学斌 赵 | Lars de Graaff |
In-app purchases
ReactionX
No in-app purchases
Heed
No in-app purchases









