Achikaps vs DUET Synth
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Achikaps
Engage in a straightforward economic strategy game. Explore both a story-driven campaign and a freeform sandbox mode. Enjoy a user-friendly interface and fluid animations.
- Easy to learn
- Campaign mode
- Sandbox mode
- Simple UI
- Smooth animations
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Achikaps is a simple economic strategy. Features: - Easy to learn - Campaign and sandbox modes - Simple UI - Smooth animations
DUET Synth
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Two players, one device. Left and right halves are separate instruments — play together, click-fight, or hunt for notes. Amber on black. Free from Aqua Mobilis.
Screenshots
Verdict
The clearest difference is ads: Achikaps at none against DUET Synth's shown. Achikaps also leads on iOS requirement (8.0 vs 18.0). DUET Synth's advantage is update cadence (daily vs every 3 months). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Achikaps ships an update every 3 months, DUET Synth daily. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.
| Parameter | Achikaps | DUET Synth |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (185 ratings) — better | — |
| Positive reviews | 88.0% of reviews | — |
| Number of ratings | 185 — better | — |
| Update frequency | Every 3 months | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 54 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ivan Yakovliev | todd cunningham |
Bugs and requests
Achikaps
Reported bugs
2 issues- Screen turns grey when opening notifications
- Buttons and UI elements become unresponsive
Requested features
4 requests- Add multiplayer mode
- Improve enemy AI difficulty scaling
- Provide more building and unit options
- Allow renaming of saved files
DUET Synth
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Achikaps
No in-app purchases
DUET Synth
No in-app purchases









