AppChoices vs ChronoSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AppChoices
Manage your preferences for interest-based advertising on mobile apps. This tool offers transparency into data collection by participating companies and allows you to opt out of cross-app data usage for personalized ads with a single click.
- Control interest-based advertising
- Limit cross-app data collection
- Opt out of personalized ads
- Transparency with participating companies
- Choose all companies with one click
- Device ID-based choice tool
- Token ID-based choice (beta)
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Control interest-based advertising on apps on your mobile device. AppChoices gives you transparency with participating companies, and lets you limit their collection of cross-app data for interest-based ads. Brought to you by the Digital Advertising Alliance, and backed up by the DAA’s independent accountability program, AppChoices lets you opt out from interest-based advertising with a particular company, or “Choose All Companies” with one simple click. Did you know that some of the ads you receive in apps are customized based on predictions about your interests generated from your app usage? This is called interest-based advertising (IBA). AppChoices gives you choices about whether you receive this type of advertising that is based on cross-app data collected over time across different apps and devices. To opt out your device ID out of IBA from a particular company, simply navigate to Device ID-Based Choice tool and set the switch next to the company’s logo from “”ON” to “OFF”. AppChoices lets you decide which, if any, participating companies deliver interest-based advertising to your device. Using the new Token ID-Based Choice (beta) tool, you can opt out or revoke having your data collected or used for IBA linked to the email address you provide. When it comes to ads in your apps based on your interests, it’s your choice. AppChoices también está disponible en español. Solo establece la configuración al idioma español. You may still receive other types of advertising in your apps from participating DAA companies, and these companies (and other apps) may still collect information for other purposes consistent with the DAA Principles. You can learn more about these Principles and the DAA’s enforcement and accountability program by visiting www.aboutads.info/enforcement. v2.2.0
ChronoSync
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Set your mechanical watch to the second. Pull the crown. Watch the countdown. The phone taps in your hand at zero, so your eyes never have to leave the dial. No mental arithmetic, no settling for close enough. Then there are the other four faces. A GMT that tracks a second timezone, a dive bezel you can actually rotate, a chronograph that runs, a moonphase that knows what tonight looks like. Each one comes with a short guide to what the complication does and how to use it — the parts a watch manual assumes you already know. What's inside A countdown to the exact second, with a tap in your hand at zero Five faces: Day-Date, GMT, Moonphase, Dive, Chronograph Controls that behave like the real thing — pick a second timezone, turn the bezel, run the chronograph Plain-language guides to every complication, including how to set a date without hurting the movement A Home Screen widget in the same style, that opens straight to the face you tapped No account, no analytics, nothing to sign up for. Go set your watch. Then stop thinking about it.
Screenshots
Verdict
The clearest difference is iOS requirement: AppChoices at 14.5 against ChronoSync's 26.0. On price, update cadence, ads and in-app purchases 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.
AppChoices ships an update every 4 months, ChronoSync every 3 months. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.
| Parameter | AppChoices | ChronoSync |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (337 ratings) — better | — |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 337 — better | — |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Digital Advertising Alliance | Dominic McPhee |
Bugs and requests
AppChoices
Reported bugs
3 issues- Buttons/toggles not functional
- App crashes when trying to complete opt-out
- Opt-out requests not working as expected
Requested features
3 requests- Ability to opt out of all companies with one button
- Clearer instructions and more intuitive UI
- Confirmation that opt-out requests were successful
ChronoSync
Not enough reviews yet to summarise bugs or requests.
In-app purchases
AppChoices
No in-app purchases
ChronoSync
No in-app purchases









