4Change Energy vs TimerLync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4Change Energy
Manage your energy account easily on the go. View usage, bills, and history. Renew plans, transfer service, and access account details anytime.
- View usage and bills
- Access bill history
- Renew your plan
- Transfer service
- Manage account day to day
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The 4Change Energy mobile app provides you with access to everything you need to manage your account day to day. View your usage and bill anytime. View bill history, renew your plan, transfer your service to a new address, and more. For more about the app, visit www.4ChangeEnergy.com/Mobile-App. For our Privacy Policy, visit www.4ChangeEnergy.com/Privacy-Policy.
TimerLync
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One countdown. Every device. One alarm. TimerLync keeps a countdown in sync across every device in the room. Set the time once, and every phone, iPad, and Apple Watch shows the same remaining seconds — then alarms at the same instant. WHY IT STAYS IN SYNC Devices agree on a single end time using network time, then count down locally. Even if Wi-Fi drops or a device goes to sleep, the alarm still fires on schedule — it's scheduled ahead of time, not pushed at the last second. FAIR STARTS A 3·2·1 lead-in lands at the same instant on every screen, so whoever taps Start doesn't get a head start. BUILT FOR GROUPS • Create a room, share a code or QR — no account, no sign-in • The host starts; pause, +1:00 and reset can be opened to everyone • Co-hosts and host hand-off when you need to step away • Ready check: wait until everyone confirms before starting • Works nearby over Bluetooth/Wi-Fi, or across networks when you're apart FOR TALKS AND EVENTS • Stage View: a full-screen, big-digit display for the podium • Host messages: send "Please wrap up" to every screen in the room • When it ends: hold at 00:00, count the overtime, flash, or show the clock, set once for the whole room • Strong Alarm: rings even in Silent mode or Focus (iOS 26 or later) MORE THAN A TIMER • Sequences: Talk 10 min → Q&A 5 min, switching automatically on every device • Group Pomodoro: focus and break cycles the whole team shares • History: look back on what you actually ran • Live Activity and Dynamic Island — glance without unlocking • Apple Watch companion with its own alarm, even away from your phone • Lock Screen widget and Siri: "Start a countdown in TimerLync" SOLO WORKS TOO No room needed. Quick Timer is a plain countdown with the same reliable alarm. TimerLync Pro (one-time in-app purchase) unlocks rooms of up to 8 devices and CSV export of session history. Rooms of 2 devices and joining any room stay available to everyone.
Screenshots
Verdict
The clearest difference is update cadence: TimerLync at fortnightly against 4Change Energy's every 3 months. 4Change Energy's advantage is iOS requirement (15.1 vs 17.0). 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.
4Change Energy ships an update every 3 months, TimerLync fortnightly. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.
| Parameter | 4Change Energy | TimerLync |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (92 ratings) — better | — |
| Positive reviews | 4.9% of reviews | — |
| Number of ratings | 92 — better | — |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 47 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Value Based Brands, LLC | JUKI JUNG |
In-app purchases
4Change Energy
No in-app purchases
TimerLync
No in-app purchases









