Kaleo vs Voco
Kaleo AI vs Voco
Any browser vs Chrome-only — and OBS/ProPresenter included vs not offered.
Prices and features verified June 2026 — source
Voco and Kaleo AI are both church-native live translation tools built around theological accuracy. Kaleo AI is custom-trained on theological vocabulary — it handles words like Propitiation, Sanctification, Imago Dei without configuration. Voco uses a configurable glossary and word-boost system. Key practical differences: Kaleo AI requires Chrome specifically (no Safari, Firefox, or Edge for attendees), doesn't integrate with OBS or ProPresenter, and uses monthly billing. Voco is browser-agnostic, includes OBS/ProPresenter on the Church plan, and has weekly billing with a 7-day trial.
At a glance
| Feature | Voco | Kaleo |
|---|---|---|
| Starting price | ✓£8/week (published) | ✓$24/month (published) |
| Pricing transparent | ✓Yes — listed on /pricing | ✓Yes — listed on their site |
| Languages (output) | 106+ | 150+ on Unlimited plan ($149/mo); 2–4 on lower plans |
| Languages (input/speaker) | 106+ | 37 input languages |
| Attendee browser | ✓Any modern browser | ✗Chrome only — Safari, Firefox, Edge not supported |
| WiFi reconnect + backfill | ✓Auto-reconnects + backfills missed text | ✗Not documented |
| OBS integration | ~Native (Church plan, £15/wk) | ✗Not offered |
| ProPresenter integration | ~Native (Church plan, £15/wk) | ✗Not offered |
| Spoken audio (TTS) | ✓Phone's built-in TTS | ~Via optional iOS/Android app |
| Theological AI training | ~Configurable word boost + glossary | ✓Custom-trained on theological vocabulary (pre-built) |
| Custom glossary | ✓Yes — word boost + glossary | ~Built into the model — less manually configurable |
| Free trial | ✓7 days, no card | ✓4 hours free |
| 24/7 live chat support | ✓Yes | ✓Support all week including Sundays |
Where Voco wins
Any browser — no Chrome requirement
Voco works in any modern browser (Safari, Chrome, Firefox, Edge). Kaleo AI specifically requires Chrome — which means asking iOS Safari users and Firefox users in your congregation to switch browsers, creating friction particularly for older congregants.
OBS and ProPresenter included
Voco's £15/week Church plan includes native OBS browser source and ProPresenter web item overlays. Kaleo AI currently offers no integration with OBS, ProPresenter, or any AV software — so on-screen captions aren't available.
WiFi backfill — no lost sentences
Voco auto-reconnects and backfills missed audio when WiFi drops. Kaleo AI's offline behaviour isn't documented — in older church buildings with unreliable connections, this gap can mean congregants miss significant portions of the sermon.
Weekly billing and 7-day trial
Voco charges weekly (£8–£15) with a 7-day free trial and no card. Kaleo charges monthly ($24–$149) with a 4-hour trial. Weekly billing makes Voco easier to pause between seasons; 7 days spans two Sundays for a thorough test.
Where Kaleo wins
An honest comparison means showing both sides.
Deeply theological AI training
Kaleo AI's model is custom-trained on theological vocabulary — it correctly handles words like Deuteronomy, Doxology, Propitiation, Sanctification, Imago Dei, and Elohim without any glossary setup. Voco's word-boost system is configurable, but requires you to add terms manually. Kaleo's approach is pre-built and deeper for common theological language.
150+ output languages on Unlimited plan
Kaleo's Unlimited plan ($149/month) covers 150+ output languages — more than Voco's 106+. Note: Kaleo can only transcribe speakers in 37 input languages. If your pastor speaks a language not in those 37, verify availability before committing.
Sunday support
Kaleo explicitly promises support 'all week, including Sundays' — the moment when something going wrong actually matters most.
Pricing comparison
Voco: £8/week (Simple) · £15/week (Church, OBS/ProPresenter, all languages). Kaleo AI: $24/month Starter (5 hrs, 2 output languages) · $49/month Pro (10 hrs, 4 output languages) · $149/month Unlimited (unlimited hrs, 150+ languages). Important: 150+ output languages on Kaleo requires the $149/month plan. *(Verified June 2026 — confirm current pricing on each provider's site.)*
Frequently asked questions
Does Kaleo AI work on iPhone (Safari)?
No — Kaleo AI specifically requires Chrome. iOS Safari won't work for the attendee captioning interface. Voco works in any modern browser including iOS Safari.
Does Kaleo AI integrate with OBS or ProPresenter?
No — Kaleo AI doesn't list any OBS, ProPresenter, or AV software integrations. Voco includes OBS and ProPresenter on the £15/week Church plan.
How does Kaleo AI's theological training compare to Voco's glossary?
Kaleo AI is custom-trained on theological vocabulary — words like Deuteronomy, Propitiation, and Sanctification are handled by the model itself. Voco's word-boost system lets you add your church's specific terms, names, and passages. Kaleo's approach works without setup; Voco's is more configurable to your specific congregation.
How much does Kaleo AI cost for 150+ languages?
Kaleo AI's 150+ language support is only available on the Unlimited plan at $149/month. The Starter ($24/month) and Pro ($49/month) plans are capped at 2 and 4 output languages respectively. Voco Church at £15/week (~£60/month) includes all 106+ languages with no cap.
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