# hey abby vs PPFD METER

The clearest difference is rating: PPFD METER at 4.6 against hey abby's 3.4. PPFD METER also leads on review sentiment (53% vs 36%). hey abby's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. PPFD METER sells 3 in-app purchases, starting at $1.99 per month. hey abby asks for nothing beyond the download.

PPFD METER holds the better App Store score, 4.6 against 3.4. Both are backed by a comparable volume of ratings — 107 and 125 respectively. Written reviews point the same way: 36% of hey abby's written reviews are positive against 53% of PPFD METER's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | hey abby | PPFD METER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (107 ratings)](https://appshunter.io/ios/app/hey-abby/id1594778711/reviews) | **[4.6 (125 ratings)](https://appshunter.io/ios/app/ppfd-meter-grow-light-meter/id6479329051/reviews)** |
| Number of ratings | 107 | **125** |
| Positive reviews | 35.7% of reviews | **52.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 90 MB | 46 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [CL Design Studio LLC](https://appshunter.io/developer/1594778713) | [Candas Pamukcu](https://appshunter.io/developer/1735587895) |

## What reviewers say

### hey abby

[App page](https://appshunter.io/ios/app/hey-abby/id1594778711)

This app guides users through plant cultivation from seed to harvest with step-by-step video instructions. It offers tools to track plant progress, maintain detailed grow diaries with data charts, and manage climate settings.

**Highlights:** Step-by-step video grow instructions, Plant progress tracking, Detailed grow diaries, Climate management tools, Grow community access

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use for beginners
- 👍 Self-explanatory system
- 👍 App guides users through steps
- 👍 Good for keeping track
- 👍 Nice and smart grow box app

**What reviewers complain about**

- 🐛 App is buggy and unreliable
- 🐛 Frequent app crashes and freezes
- 🐛 Difficult to navigate and find instructions
- 🐛 App logs users out frequently
- 🐛 Poor customer support experience

**Reported bugs**

- App keeps changing settings
- Light panel went out
- App skipped drying process
- Cannot get box temp under 75 degrees
- App logs out frequently

**Requested features**

- More regular app updates
- Ability to invite others to manage the box
- See environmental details
- Translate app to German
- Improve German translation


### PPFD METER

[App page](https://appshunter.io/ios/app/ppfd-meter-grow-light-meter/id6479329051)

This app measures light intensity for plants, converting LUX to PPFD and DLI. It offers advanced light mapping, uniformity analysis, and efficiency insights to optimize plant growth. Customize profiles for different environments and growth stages.

**Highlights:** LUX, PPFD, DLI, and PAR measurements, Light mapping and distribution analysis, Uniformity and PPF evaluation, Energy efficiency and consumption tracking, Customizable setting profiles, Bluetooth sensor integration

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium Plus | $2.99 | per month |
| Remove Ads | $29.99 | one-time |


## Frequently asked questions

### Is hey abby free?

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

### Is PPFD METER free?

PPFD METER is free to download, with in-app purchases available.

### Which has better reviews, hey abby or PPFD METER?

PPFD METER is rated higher. hey abby averages 3.4 out of 5 from 107 ratings, while PPFD METER averages 4.6 from 125 ratings.

### Do hey abby or PPFD METER have ads?

PPFD METER shows ads; hey abby does not.

### Which is updated more often, hey abby or PPFD METER?

hey abby ships an update every 3 weeks, and PPFD METER every 3 weeks. Most recently, hey abby was updated on October 15, 2026 and PPFD METER on October 18, 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.*