WallAIR vs Chain Timers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WallAIR
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Mobile application for controlling the HRU-WALL-WI single room, push-pull heat recovery ventilation units. It allows you to control a device or a group of devices in the local network. Functions: - Creating groups of units, e.g. according to rooms - Setting the speed (3 speeds) - Setting the operation mode (alternating with recovery, unidirectional, temporary boost) - Showing temperature and relative humidity in the room - Statistical distribution of humidity over time - Automatic dehumidification mode - Filter replacement timer
Chain Timers
Connect multiple countdown timers to run in sequence. Configure automatic transitions between timers or choose to pause. Share your timer sequences easily across devices.
- Chain up to 25 timers
- Automatic or manual timer transitions
- Share timer lists
- Cross-device list sharing
- Save timer histories
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Chain your timers. Take control of your time. Chain Timer is a simple and useful app that lets you connect and run multiple countdown timers in a row. Key Features: * Connect up to 25 timers in one sequence * Choose whether to pause or move to the next timer automatically after each one ends * Easily share timer lists (QR codes can also be used for simple lists) * Share lists between iPhone, iPad, and Mac * Save up to 4 timer list histories (5 including the one you're currently using) Perfect for: * Structuring self-study sessions * Setting timers to match recipe steps * Keeping meetings and workshops on track * Creating and following your personal health routines Note: This app does not support sub-second timers. It is not intended for use in competitive sports or situations requiring precise time measurement.
Screenshots
Verdict
WallAIR and Chain Timers 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 | WallAIR | Chain Timers |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 19 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Alnor Systemy Wentylacji ap. z.o.o. | Masayuki Nomura |
In-app purchases
WallAIR
No in-app purchases
Chain Timers
No in-app purchases









