Zadarma vs CallHippo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zadarma
This VoIP app allows you to make and receive calls and SMS using a virtual number and PBX. It offers features like call transfer, recording, and an AI voice agent to automate incoming calls. Seamlessly integrate with CRM and ERP systems for enhanced business communication.
- Virtual numbers and PBX
- Call transfer
- Call recordings
- SMS messaging
- AI Voice Agent
- CRM integration
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Zadarma is a simple and reliable VoIP app for making and receiving calls and SMS. Get a virtual number and PBX in one app, right on your mobile! Stay connected wherever you are with high-quality calls and affordable rates. Key Features: - Virtual numbers & PBX – get a virtual number in 110 countries and connect to your PBX directly in the app. - Call transfer – easily transfer calls to colleagues or other numbers. - Call recordings – listen to recorded calls right in the app. - SMS messaging – send and receive texts easily. - AI Voice Agent – automate incoming calls with an AI assistant that can answer questions, use your knowledge base, and transfer calls to your team when needed. Need more? Get a free Teamsale CRM already integrated with our telephony, plus seamless integration with all popular CRM and ERP systems. Zadarma also offers call tracking, website widgets, speech analytics, and more to boost your business. Learn more at zadarma.com!
CallHippo
This virtual phone system provides local and toll-free numbers from over 50 countries. Businesses can quickly set up a complete phone system with an intuitive interface and powerful backend.
- Virtual phone system
- Local & Toll Free numbers
- 50+ countries
- Instant setup
- Easy to use interface
- Robust backend
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CallHippo is a VoIP based Virtual Phone System which allows startups, small business and enterprise to get Local & Toll Free numbers instantly from over 50+ countries around the world. With our easy to use interface and robust backend architecture, any business can setup their phone system in less than 3 minutes.
Screenshots
Verdict
The clearest difference is rating: Zadarma at 3.3 against CallHippo's 1.8. Zadarma also leads on review sentiment (41% vs 28%) and iOS requirement (12.0 vs 15.6). On price, ratings volume, update cadence and ads 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.
Zadarma holds the better App Store score, 3.3 against 1.8. Both are backed by a comparable volume of ratings — 69 and 52 respectively. Written reviews point the same way: 41% of Zadarma's written reviews are positive against 28% of CallHippo's.
Zadarma ships an update every 2 months, CallHippo every 4 weeks. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.
| Parameter | Zadarma | CallHippo |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (69 ratings) — better | 1.8 (52 ratings) |
| Positive reviews | 41.0% of reviews — better | 27.6% of reviews |
| Number of ratings | 69 — better | 52 |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 84 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Zadarma Project | Ankit Dudhwewala |
Customer experience
Zadarma
CallHippo
Bugs and requests
Zadarma
Not enough reviews yet to summarise bugs or requests.
CallHippo
Reported bugs
19 issues- App crashes frequently on iOS
- Session expired and keeps loading
- App crashes on MacBook
- App crashes on startup
- App crashes when opening SMS conversations
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- App crashes after updates
- App doesn't ring on phone
- App doesn't allow login
- App doesn't stay open on iPhone
- App crashes on iPhone X
- App crashes when SMS feature is used
- Cannot create account
- App doesn't work
- Cannot answer phone calls
- Cannot login with website credentials
- Cannot receive calls
- Cannot receive SMS
- Virtual number disappeared
- App not working on iPhone
Requested features
6 requests- Fix UI for iPhone
- Improve iOS app reliability
- Allow sending photos in text messages
- Support Google sign-in on app
- Allow sending international messages
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- More attractive UI
In-app purchases
Zadarma
No in-app purchases
CallHippo
No in-app purchases
