Scent Harmony vs Requests Signer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scent Harmony
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Through simple and convenient Bluetooth function, users can easily set the working time and fragrance concentration of
Requests Signer
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Confirm restricted actions using your ledger
Screenshots
Verdict
The clearest difference is update cadence: Requests Signer at every 4 months against Scent Harmony's every 11 months. Scent Harmony's advantage is iOS requirement (9.0 vs 17.5). On price, ads, 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.
Scent Harmony ships an update every 11 months, Requests Signer every 4 months. The most recent releases landed on May 17, 2026 and September 21, 2026 respectively.
| Parameter | Scent Harmony | Requests Signer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 4 MB | 32 MB |
| Age rating | 17+ | 4+ |
| Developer | Immaculate Nduta | Creon |
In-app purchases
Scent Harmony
No in-app purchases
Requests Signer
No in-app purchases
Questions
Is Scent Harmony free?
Is Requests Signer free?
Do Scent Harmony or Requests Signer have ads?
Which is updated more often, Scent Harmony or Requests Signer?
Other comparisons
