Reaction Time vs Dartline
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Reaction Time
Test and train your reflexes with various game modes. Compete globally in periodic rankings to become the world champion. Ideal for improving reaction speed for emergencies.
- One-shot reflex games
- Random appearance challenges
- 3 consecutive reflex tests
- Global player rankings
- Periodic ranking resets
- Reflex training for emergencies
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Challenge the limits of your reflexes! We'll measure your reflexes in one-shot games, random appearances, and 3 consecutive! Train your reflexes for emergencies! You can compete with people from all over the world in the ranking. The ranking is reset periodically, so you have as many chances as you want to become the world champion.
Dartline
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Dartline turns your iPhone into a darts board you actually throw at. Tilt to aim, lock your stance, and swing the phone forward. No bars, no boards, no chalk. ■ Controls • Tap AIM at the bottom to enter aiming mode • Tilt left/right/up/down to move the crosshair • Tap LOCK — the current pose becomes your "straight" reference • Swing the phone forward to release; the deviation monitor on the dartboard shows your swing quality in real time ■ Game Modes • Count Up — total score over 8 rounds, with Game Center leaderboard • 301 / 501 — subtract to exactly zero • Cricket Standard — close 15-20 + Bull, then score against open opponents • Cricket Count Up — score only on 15-20 + Bull, 8 rounds, Game Center leaderboard (NEW) • Cricket Cut Throat — closing dumps penalty points on opponents instead. Lowest score wins. ■ Match Modes • Free Play — solo practice (Count Up / Cricket Count Up submit to leaderboard) • Pass & Play — 2-4 players take turns on one phone • vs COM — 1 human + 1 COM with Easy / Normal / Hard difficulty BARS NOT REQUIRED.
Screenshots
Verdict
The clearest difference is iOS requirement: Reaction Time at 15.0 against Dartline's 17.0. 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.
Reaction Time ships an update fortnightly, Dartline monthly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Reaction Time | Dartline |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 68.1% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly — better | Monthly |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 60 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Osawa Shunsuke | Takayuki Hamuro |
In-app purchases
Reaction Time
No in-app purchases
Dartline
No in-app purchases









