My Eclipse vs Op!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
My Eclipse
This app offers an interactive guide to eclipses, providing personalized visibility data and optimal viewing times for upcoming solar events. It features a simulation tool to visualize eclipse trajectories and phases, alongside educational content on different eclipse types and their significance.
- Personalized eclipse visibility data
- Optimal viewing time calculation
- Solar eclipse trajectory simulation
- Interactive eclipse phases visualization
- Educational content on eclipse types
- Historical eclipse significance
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Explore the cosmos like never before with our three-step interactive guide to the world of eclipses. Discover Your Eclipse Achieve pinpoint accuracy for the trajectory of upcoming solar eclipses, personalized visibility data, and optimal viewing times specific to your geographic location. Eclipse Guide is more than an app; it's your personal guide to navigating and experiencing these celestial spectacles. Prepare with Simulation Use our sophisticated simulation feature to visualize and understand the trajectory, phases, and magnitude of an upcoming solar eclipse before it happens. Immerse yourself in this virtual celestial landscape from your device, thus preparing you for the actual event. Dive into the World of Eclipses Navigate through our organized content to explore various types of eclipses, their occurrence, historical significance, and the unique phenomena associated with them. Designed to appeal to astronomy enthusiasts as well as casual observers, Eclipse Guide enhances your eclipse-watching experience, transforming it into a journey of discovery and learning. Whether you are planning for an upcoming eclipse, looking to explore past or future events, or simply want to immerse yourself in the science behind these majestic astronomical events, Eclipse Guide: Discovery & Simulation has got you covered. Experience the dance of celestial bodies in an enlightening, engaging, and exciting way.
Op!
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Op! +/- is a fun mobile app designed by a remedial teacher! This app allows children to learn their addition and subtraction tables through play, while introducing concepts such as commutativity (3 + 1 = 1 + 3) and missing terms (12 - ? = 4). A gentle progression of difficulty within each table helps children advance without even realizing it! Op! +/- is especially useful to support school learning, presenting the tables one by one; consistent with classroom teaching. Description of the educational content of Op! - Additions by isolated tables from 0 to 10 - Subtractions by isolated tables from 0 to 10 - Commutativity and mathematical reversibility (3 + 1 = 1 + 3) - Missing terms (12 - __ = 4) Op! allows both educators and parents to further diversify their teaching approaches to strengthen, in children, the math learning that must become automatic. Goal of the Op! game In this game context, the goal of the Op! app is for the child to progress at their own pace, feel valued through their successes in learning and to automate their math calculation skills. With Op! +/- learners are motivated to learn as they are encouraged by positive and immediate feedback after each correct answer!
Screenshots
Verdict
The clearest difference is price: My Eclipse at Free against Op!'s $6.99. On ads, in-app purchases, device support and iOS requirement 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
My Eclipse is free to download; Op! costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | My Eclipse | Op! |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | 4.8 (17 ratings) — better | — |
| Positive reviews | 92.8% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 4 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 288 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Federation des Astronomes Amateurs du Quebec | Lussier Annie |
Bugs and requests
My Eclipse
Reported bugs
4 issues- Screen format not adapted for iPhone SE
- Nothing worked during eclipse on iPhone SE
- Not intuitive on iPhone SE
- Voice not heard when iPhone goes to sleep
Requested features
9 requests- Display current percentage of eclipse
- Add past eclipses for memory/collection
- Allow tagging witnessed eclipses
- Track user position and create time capsule
- Add option to save photos
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- Filter eclipses by date range (past/future)
- Filter eclipses by proximity to a chosen location
- Make past eclipse data available
- Provide eclipse trajectory and timing data for past events
Op!
Not enough reviews yet to summarise bugs or requests.
In-app purchases
My Eclipse
No in-app purchases
Op!
No in-app purchases









