Orenda vs Scrollogy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Orenda
This app helps you master pool chemistry by accurately calculating chemical dosages and balancing water based on the LSI. It offers a user-friendly experience for both novices and professionals, including a volume estimator and educational videos.
- Chemical dosing calculator
- LSI water balancing
- Pool volume estimator
- User-friendly interface
- Educational videos
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Master pool chemistry with the Orenda pool chemical dosing calculator. Measure pool chemicals accurately while balancing water chemistry according to the LSI. The Orenda App is a swimming pool calculator with a user friendly experience, and makes pool chemistry easier than ever. Try the new pool volume estimator and watch Orenda videos in the app. A pool chemical calculator that allows a novice to dose chemicals as accurately as a professional pool operator.
Scrollogy
This app acts as a central hub for all your online discoveries, allowing you to save articles, videos, screenshots, links, and notes. It intelligently organizes your saved content, provides summaries, and enables you to search and ask questions about your saved items.
- Save links, screenshots, videos, articles, and notes
- Search saved content in plain language
- Ask questions about saved items
- View summaries, tags, and connected saves
- Rewind recent saves
- Use share extension to save from other apps
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Scrollogy is one brain for everything you find online. Save videos, articles, screenshots, links, and notes into one place that actually remembers them. Add things from anywhere, then let Scrollogy organize the mess. It summarizes saves, groups them by topic, resurfaces what you forgot about, and lets you ask your brain for the thing you swear you saw last week. What you can do: - Save links, screenshots, videos, articles, and notes - Search everything you saved in plain language - Ask your brain questions about your saves - See summaries, tags, topics, and connected saves - Rewind what you saved recently - Use the share extension to save from other apps Scrollogy Pro unlocks the unlimited brain: more saves, any-day rewinds, and deeper connections across everything you have saved. Terms of Use: https://scrollogy.app/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Orenda at none against Scrollogy's 1. Orenda also leads on ratings volume (476 vs 3) and device support (3 vs 1). Scrollogy's advantage is rating (5.0 vs 4.7) and update cadence (every 9 days vs monthly). On price 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. Scrollogy sells 1 in-app purchase, starting at $4.99 per month. Orenda asks for nothing beyond the download.
Scrollogy holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Orenda has 476 ratings behind it against 3, so its average is the more settled of the two.
Orenda ships an update monthly, Scrollogy every 9 days. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.
| Parameter | Orenda | Scrollogy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (476 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 82.6% of reviews | — |
| Number of ratings | 476 — better | 3 |
| Update frequency | Monthly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 78 MB | 5 MB |
| Age rating | 4+ | 12+ |
| Developer | Hasa Inc. | Romario Jashari |
Customer experience
Orenda
Scrollogy
Bugs and requests
Orenda
Reported bugs
4 issues- Desired levels changing when inputting current values
- Metric system not functioning as expected
- Slider feature for inputting readings is slow and frustrating
- App not optimized for all iPhone screen sizes
Requested features
5 requests- Ability to save pool volume and desired levels
- Option to log pool history and track trends
- Integration with pool chemical monitors
- Ability to set custom chemical concentrations
- Support for more languages (e.g., Chinese)
Scrollogy
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Orenda
No in-app purchases
Scrollogy
- Scrollogy Pro$4.991 Month
Questions
Is Orenda free?
Is Scrollogy free?
Which has better reviews, Orenda or Scrollogy?
Do Orenda or Scrollogy have ads?
Which is updated more often, Orenda or Scrollogy?
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