ClockChime vs Stolo Systems
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClockChime
This app announces the current time hourly and on the half-hour, helping you stay aware without checking your device. It offers native performance, low resource usage, and customizable chime settings.
- Hourly chime announcements
- Half-hourly chime announcements
- Voice time announcements
- Smart skip during silent mode/calls
- Customizable active days
- Shake to speak functionality
- Custom event reminders
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ClockChime is a fully native SwiftUI-built iOS time-announcement app — lightweight, instant-launch, and buttery smooth. It speaks the current time on every hour and half-hour, so you stay aware without constantly checking your phone. Native Performance • 100% native app — no WebView wrapping. Fast launch, fluid animations, zero lag • Ultra-low memory footprint, near-zero battery impact in background • Deeply integrated with iOS native TTS engine for clear, low-latency speech • Robust background task scheduling — chimes continue when screen is locked or off • Full support for Dark Mode, Dynamic Type, and system accessibility features Free Features • Hourly Chime — 24 individual toggles for precise control • Voice Announcement — clear TTS reads out the time • Smart Skip — auto-silences during silent mode or calls • Flexible Active Days — choose which weekdays to chime • Bilingual — switch UI and voice between Chinese and English • No ads, no push notifications, no internet required “Unlock All Features” (One-Time Purchase) A single one-time purchase permanently unlocks these advanced features. No subscription, no hidden costs: • Half-Hourly Chime — equally precise half-hour time announcements • Shake to Speak — shake your phone to hear the current time instantly • Custom Events – Set personalized reminders to get timely notifications for important matters. Supports multiple modes including text-to-speech, audio selection, and self-recording. • Premium Voice Selection — unlock more high-quality TTS voices Your purchase is permanent and can be restored on any device via the “Restore Purchase” option — no need to pay again. Perfect For • Office workers, students, and freelancers managing their day • Near-zero resource usage — silently works in the background without affecting daily performance Download ClockChime — time with warmth.
Stolo Systems
This app provides encrypted, off-grid messaging that functions without internet connectivity. It creates a peer-to-peer mesh network using Wi-Fi, cellular, or LoRa radio, enabling secure communication of messages, photos, voice notes, and GPS locations even when cell towers or servers are unavailable.
- Off-grid encrypted messaging
- Peer-to-peer mesh network
- Works without internet
- End-to-end encryption
- Offline world map
- Emergency SOS beacon
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Stolo is an encrypted messenger that built off of Reticulum and LXMF Out of the box it is a private, end-to-end encrypted messenger: no account, no phone number, no sign-up. Your identity and your history live only on your device, and Stolo's gateway relays your messages across the internet. When you need more, the same app becomes your own network. Create a network, share one invitation, and everyone who joins is in each other's contacts, trusted, automatically. Phones link directly over Wi-Fi and cellular, and optional long-range LoRa radios carry messages where there is no signal at all. Messages to someone out of range wait and are delivered when they come back. What you can send, on or off the grid: • Messages, photos, and voice notes, end-to-end encrypted. Only the people in the conversation can read them. Not us. • Live GPS positions on a built-in offline world map. See yourself and your team with zero connectivity. Under the hood, Stolo is built on Reticulum, the open cryptographic mesh stack, and sets up in a minute with no config files. Used for backcountry trips, maritime, job sites, disaster response, and everyday group chats that should stay between the people in them. Built on privacy. Works every day, everywhere, and keeps working when nothing else does.
Screenshots
Verdict
The clearest difference is monetization model: Stolo Systems at free against ClockChime's free with in-app purchases. ClockChime's advantage is update cadence (every 8 days vs every 3 weeks). On price, review sentiment, 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.
ClockChime ships an update every 8 days, Stolo Systems every 3 weeks. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.
| Parameter | ClockChime | Stolo Systems |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (10 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | Every 8 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 265 MB |
| Age rating | 4+ | 4+ |
| Developer | 小明 张 | Stolo Systems Inc. |
Customer experience
ClockChime
Stolo Systems
In-app purchases
ClockChime
No in-app purchases
Stolo Systems
No in-app purchases









