# PetOne Vet vs MARLÖ

The clearest difference is rating: PetOne Vet at 4.9 against MARLÖ's 4.3. PetOne Vet also leads on review sentiment (63% vs 31%) and ratings volume (2.7K vs 157). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PetOne Vet holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: PetOne Vet has 2.7K ratings behind it against 157, so its average is the more settled of the two. Written reviews point the same way: 63% of PetOne Vet's written reviews are positive against 31% of MARLÖ's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | PetOne Vet | MARLÖ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (2.7K ratings)](https://appshunter.io/ios/app/petone-vet/id6447440095/reviews)** | [4.3 (157 ratings)](https://appshunter.io/ios/app/marlo/id6473759225/reviews) |
| Number of ratings | **2.7K** | 157 |
| Positive reviews | **62.6% of reviews** | 31.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Best chart rank | **#158** | — |
| Size | 44 MB | 100 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [National Veterinary Associates Inc.](https://appshunter.io/developer/1240543009) | [Alcon Vision, LLC](https://appshunter.io/developer/1478292547) |

## What reviewers say

### PetOne Vet

[App page](https://appshunter.io/ios/app/petone-vet/id6447440095)

**Currently charting:** #158 Top Free · Medical (US App Store)

Manage your pet's health with reminders for appointments, vaccinations, and preventatives. Book and view appointments 24/7, and message your clinic directly for updates and check-ins. Simplify pet parenting with ease and peace of mind.

**Highlights:** Health reminders (appointments, vaccinations), 24/7 appointment booking, View appointment details, Direct clinic messaging, Pet wellness tracking

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent customer service
- 👍 Caring and compassionate staff
- 👍 User-friendly app
- 👍 Convenient appointment booking
- 👍 Helpful and informative

**What reviewers complain about**

- 🐛 Unable to edit appointment notes
- 🐛 Limited pet options
- 🐛 Accessibility issues for visually impaired users
- 🐛 Inability to view pet records
- 🐛 Enrollment and account management issues

**Reported bugs**

- Appointment booking errors
- Password reset functionality not working
- Account creation issues

**Requested features**

- Add follow-up appointment option
- Improve accessibility for visually impaired users
- Allow viewing of pet records and lab work
- Expand pet options beyond cats and dogs


### MARLÖ

[App page](https://appshunter.io/ios/app/marlo/id6473759225)

Manage your eye health and contact lens orders effortlessly with your eye doctor's practice. Receive timely reorder reminders, track your orders, and access personalized eye care tips. Find a local eye doctor if you're not yet connected.

**Highlights:** Contact lens reorder reminders, Seamless ordering process, Order status tracking, Direct connection to eye doctor, Find a local eye doctor, Personalized eye care tips

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to reorder contacts
- 👍 Convenient online ordering
- 👍 User-friendly interface (when it works)
- 👍 Free shipping offered
- 👍 Order tracking available

**What reviewers complain about**

- 🐛 App is slow and buggy
- 🐛 Frequent errors and glitches
- 🐛 Cannot order contacts
- 🐛 Account creation issues
- 🐛 Login problems

**Reported bugs**

- Deletes family members upon login
- App is slow and doesn't work half the time
- Cannot sign up without agreeing to texts
- Takes weeks to process orders
- App will no longer allow ordering through patient portal

**Requested features**

- Allow ordering of glasses prescriptions
- Improve AI help functionality
- Fix account creation issues
- Allow users to bypass promotional texts
- Improve prescription validity recognition


## Frequently asked questions

### Is PetOne Vet free?

PetOne Vet is free to download, with no in-app purchases.

### Is MARLÖ free?

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

### Which has better reviews, PetOne Vet or MARLÖ?

PetOne Vet is rated higher. PetOne Vet averages 4.9 out of 5 from 2.7K ratings, while MARLÖ averages 4.3 from 157 ratings.

### Do PetOne Vet or MARLÖ have ads?

Neither PetOne Vet nor MARLÖ shows ads.

### Which is updated more often, PetOne Vet or MARLÖ?

PetOne Vet ships an update every 3 weeks, and MARLÖ every 3 weeks. Most recently, PetOne Vet was updated on October 25, 2026 and MARLÖ on October 23, 2026.

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