Hearlo vs Synapse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hearlo
This app facilitates communication for individuals with speech or hearing disabilities. It offers real-time audio transcription, text-to-speech conversion, and translation in multiple languages, including offline support. A customizable pictogram library and business-specific navigation features enhance accessibility.
- Real-time audio transcription
- Text-to-speech conversion
- Real-time translation
- Multi-language support
- Offline communication
- Customizable pictogram library
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Welcome to Hearlo – The #1 Communication Accessibility App Designed with and for people with speech or hearing disabilities, Hearlo already helps more than 500,000 people in 70 countries to: • Transcribe audio, convert text to speech, and translate in real time. • Communicate in more than 10 languages, even offline. • Use a customizable pictogram library for Augmentative Communication. • Navigate physical spaces of companies that use Hearlo for Business. • …and much more! Hearlo is simple, powerful, and 100% free, forever. Join our #InclusionRevolution and help us make communication accessible for everyone. Follow us: @hearloapp | www.hearlo.app An Asteroid initiative.
Synapse
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The application provides actionable insight through data collation, incident reporting, intelligence gathering and analysis. Streamlining operations by optimising decision making, reducing response times, and improving communications to better protect people, assets, and locations.
Screenshots
Verdict
The clearest difference is update cadence: Hearlo at every 3 weeks against Synapse's every 2 months. Synapse's advantage is iOS requirement (15.0 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.
Hearlo ships an update every 3 weeks, Synapse every 2 months. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.
| Parameter | Hearlo | Synapse |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (29 ratings) — better | — |
| Positive reviews | 48.5% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 60 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | ASTECH S.A.S. | Zinc Digital |
In-app purchases
Hearlo
No in-app purchases
Synapse
No in-app purchases
