Spin4 vs DigitalHarmonyA
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Spin4
Read full descriptionHide full description
Place a piece. Watch the board rotate. Everything changes. Spin4 is a strategy game built for Apple Watch. On a 4Γ4 board, connect four to win β but after every move, the board rotates counter-clockwise. The outer ring and inner core rotate independently. You don't just think about now. You think about what comes next. β’ Every move reshapes the board β’ Outer and inner layers rotate separately β’ Your winning setup can become your opponent's chance β’ Quick 3-minute matches Offline. No ads. Pure strategy on your wrist.
DigitalHarmonyA
Read full descriptionHide full description
DigitalHarmony is a dual-desk number merge game. On iPhone, climb 3Γ3 to 6Γ6, race a timer, take a 30-step 512, or sit at the quiet desk. On Apple Watch, a one-screen 4Γ4 opens from a raised wrist. Scores, the open board, and the top 10 fold together. Pair Snap and Drop Lane sit on the side. No login, no ads.
Screenshots
Verdict
The clearest difference is update cadence: Spin4 at every 10 days against DigitalHarmonyA's every 5 months. Spin4 also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Spin4 ships an update every 10 days, DigitalHarmonyA every 5 months. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.
| Parameter | Spin4 | DigitalHarmonyA |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days β better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Requires iOS | 13.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | ζε ζ | Hoang Hot Nguyen |
In-app purchases
Spin4
No in-app purchases
DigitalHarmonyA
No in-app purchases
Questions
Is Spin4 free?
Is DigitalHarmonyA free?
Do Spin4 or DigitalHarmonyA have ads?
Which is updated more often, Spin4 or DigitalHarmonyA?
Other comparisons
