# Spark Voicemail vs Authenticator °

The clearest difference is review sentiment: Authenticator ° at 77% against Spark Voicemail's 22%. Authenticator ° also leads on rating (4.8 vs 3.0) and update cadence (every 2 weeks vs every 2 months). Spark Voicemail's advantage is in-app purchases (none vs 14) and iOS requirement (12.0 vs 15.0). On price and ads there is nothing between them.

Both are free to download. Authenticator ° sells 14 in-app purchases, starting at $9.99 per month. Spark Voicemail asks for nothing beyond the download.

Authenticator ° holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Authenticator ° has 600 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 22% of Spark Voicemail's written reviews are positive against 77% of Authenticator °'s.

Spark Voicemail ships an update every 2 months, Authenticator ° every 2 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Spark Voicemail | Authenticator ° |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/spark-voicemail/id1460219317/reviews) | **[4.8 (600 ratings)](https://appshunter.io/ios/app/authenticator/id6446651396/reviews)** |
| Number of ratings | 4 | **600** |
| Positive reviews | 22.2% of reviews | **76.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 52 MB | 55 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Norwood Systems (Aust) Pty Ltd](https://appshunter.io/developer/576271358) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## What reviewers say

### Spark Voicemail

[App page](https://appshunter.io/ios/app/spark-voicemail/id1460219317)

This app transforms your voicemail into a visual experience, allowing you to read transcripts, listen, and manage messages easily. It offers features like lock screen access, playback speed control, and email forwarding for enhanced productivity.

**Highlights:** Visual voicemail transcription, Lock screen playback and reading, Playback speed control, Email forwarding, Searchable voicemails, Personalized greeting setup, Biometric security

**In-app purchases:** none

**What reviewers like**

- 💡 Visual voicemail management
- 📝 Transcription of voicemails
- 👍 Easy to read voicemails
- 🔄 Works well for some users
- ✨ Concept is brilliant

**What reviewers complain about**

- 🐛 Voicemails delayed
- 🐛 App crashes frequently
- 🐛 Activation failures
- 🐛 Messages not arriving
- 🐛 App stops working

**Reported bugs**

- Voicemails arrive a day later
- Voicemail messages do not arrive in the app
- App not working correctly with iOS updates
- App fails to activate
- App crashes on launch

**Requested features**

- Multi-line support for dual-SIM phones
- Ability to block spam callers
- Integration with native iOS voicemail
- Improved transcription accuracy
- Option to disable transcription


### Authenticator °

[App page](https://appshunter.io/ios/app/authenticator/id6446651396)

This app enhances your online security by generating time-sensitive passwords for two-factor and multi-factor authentication. It offers seamless data synchronization across devices, Apple Watch support, and robust encryption for your sensitive information.

**Highlights:** One-Time Passwords (OTP), Seamless Data Synchronization, Apple Watch Support, End-to-End Encryption, Import/Export Encrypted Backups, Auto-Lock & Biometric Authentication

**Features:** macOS Compatibility

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Monthly | $9.99 | per month |
| Monthly | $9.99 | per month |
| 3 Month | $12.99 | per 3 months |
| 1 Year, 50% off | $19.99 | per year |
| 1 Year Discounted | $22.99 | per year |
| 1 Year, 30% off | $27.99 | per year |
| 1 Year with initial offer | $34.99 | per year |
| Annual subscription | $39.99 | per year |
| 1 Year | $39.99 | per year |
| 1 Year | $39.99 | per year |
| Free Lifetime subscription | Free | one-time |
| Lifetime, intro offer | $0.29 | one-time |
| Lifetime | $59.99 | one-time |

**What reviewers like**

- 👍 Easy to install and use
- 🔒 Secure password management
- 🚀 Efficient and fast
- 👍 Great user interface
- 🔒 Robust security features

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔒 Concerns about cloud storage security
- 🤔 Forced 5-star review before use
- 🤔 Unclear or confusing onboarding process

**Reported bugs**

- List of saved sites/accounts disappearing
- Trouble logging in or resetting password
- Incompatibility with older devices

**Requested features**

- Allow renaming of accounts
- Add pop-up notifications like other authenticators
- Improve sync with desktop/laptop
- Provide more theme/customization options


## Frequently asked questions

### Is Spark Voicemail free?

Spark Voicemail is free to download, with no in-app purchases.

### Is Authenticator ° free?

Authenticator ° is free to download, with in-app purchases available.

### Which has better reviews, Spark Voicemail or Authenticator °?

Authenticator ° is rated higher. Spark Voicemail averages 3.0 out of 5 from 4 ratings, while Authenticator ° averages 4.8 from 600 ratings.

### Do Spark Voicemail or Authenticator ° have ads?

Neither Spark Voicemail nor Authenticator ° shows ads.

### Which is updated more often, Spark Voicemail or Authenticator °?

Spark Voicemail ships an update every 2 months, and Authenticator ° every 2 weeks. Most recently, Spark Voicemail was updated on October 19, 2026 and Authenticator ° on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*