BellsClock vs TGSpeechBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BellsClock
Easily create and manage custom school bell schedules. Import schedules from CSV files or websites, and export your own. Personalize screen colors and navigate with a hamburger menu.
- Customizable bell schedules
- Add/delete class periods
- Modify start/end times
- Import from CSV/web
- Export to CSV
- Personalize screen color
- Hamburger menu navigation
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Version 2 update: * Navigation among pages is done by the hamburger menu. * The screen color can be modified and personalized. * Individual bell schedules can be exported to Comma Separated Value (CSV) text format. Details: You can customize a bell schedule by adding or deleting class periods, modifying their start and end times, adding or deleting whole schedules, and modifying the names of the periods. School bell schedules can be imported from a Comma Separated Values text file located on the device or, for school-wide distribution of a set of schedules, from a Web site. The CSV file format is simple: - Quotation marks are optional. - A schedule record precedes the set of period records. - Period record format is periodname,start HH:MM,end HH:MM HH can be 24 hour or 12 hour; simply add AM or PM for 12 hour times. - Sample file: # Comment lines have leading hash mark # Next line is a schedule name (no colon or comma) Regular # These are period records name-of-period,HH:MM,HH:MM Home Room,7:55,8:05 1st Period,8:08,8:48 2nd Period,8:51,9:31 Break,9:31,9:41 3rd Period,9:44,10:24 4th Period,10:27,11:07 5th Period,11:10,11:50 Lunch,11:53,12:33PM 6th Period,12:36,13:16 7th Period,1:19PM,1:59PM 8th Period,14:02,14:42 Office Time,2:42p,15:15 # Next schedule A.M. Assembly Home Room,7:55,8:03 Assembly,8:05,9:15 1st Period,9:18,9:51 # And so on.....
TGSpeechBox
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TGSpeechBox is a high-quality speech synthesizer that works as a system voice with VoiceOver and as a standalone text-to-speech app. Features: • 26 languages with natural-sounding speech • Full VoiceOver integration — use as your primary system voice • 7 voice presets plus YAML-defined voice profiles • Deep engine tuning: pitch mode, voice tone, formant sharpness, inflection, tremor, breathiness, and more • Phoneme editor: fine-tune individual speech sounds with live preview • Pronunciation dictionary: add custom word pronunciations with IPA override support • Stress, compound, and character dictionaries for advanced control • Export and share your customizations • Adjustable sample rate (11025–44100 Hz) • Rate override and rate boost for VoiceOver • Language lock: keep your preferred language regardless of system setting • Runs entirely on-device — no internet required, no data leaves your phone TGSpeechBox uses a Klatt-style formant synthesis engine with eSpeak-ng for phoneme generation. It is open source under the MIT license. Built by a blind developer, designed for accessibility from day one.
Screenshots
Verdict
The clearest difference is update cadence: TGSpeechBox at weekly against BellsClock's every 6 months. TGSpeechBox also leads on iOS requirement (16.0 vs 18.0). 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.
BellsClock ships an update every 6 months, TGSpeechBox weekly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | BellsClock | TGSpeechBox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 47 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Francis Golazeski | Tamas Geczy |
In-app purchases
BellsClock
No in-app purchases
TGSpeechBox
No in-app purchases









