# Impromptu Topic Generator vs Opal

The clearest difference is rating: Opal at 4.7 against Impromptu Topic Generator's 3.2. Opal also leads on update cadence (every 5 days vs every 26 months) and ratings volume (91K vs 5). Impromptu Topic Generator's advantage is in-app purchases (none vs 10) and device support (3 vs 1). On price, review sentiment and ads there is nothing between them.

Both are free to download. Opal sells 8 in-app purchases, starting at $4.99 per 7 days. Impromptu Topic Generator asks for nothing beyond the download.

Opal holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: Opal has 91K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 60% of Impromptu Topic Generator's written reviews are positive against 61% of Opal's.

Impromptu Topic Generator ships an update every 26 months, Opal every 5 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Impromptu Topic Generator | Opal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (5 ratings)](https://appshunter.io/ios/app/impromptu-topic-generator/id1066113653/reviews) | **[4.7 (91K ratings)](https://appshunter.io/ios/app/opal-screen-time-control/id1497465230/reviews)** |
| Number of ratings | 5 | **91K** |
| Positive reviews | 60.0% of reviews | **61.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Best chart rank | — | **#42** |
| Size | 9 MB | 332 MB |
| Requires iOS | **11.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Avinash Jain](https://appshunter.io/developer/1001015519) | [Opal OS](https://appshunter.io/developer/1497465229) |

## What reviewers say

### Impromptu Topic Generator

[App page](https://appshunter.io/ios/app/impromptu-topic-generator/id1066113653)

This app provides a vast collection of topics for impromptu speaking practice, automatically integrating timers for preparation and speaking segments. It aims to streamline the process of finding speaking prompts and managing time, making it easier to improve public speaking skills.

**Highlights:** Thousands of topics, Concrete and abstract noun prompts, Quote prompts, Automatic timers, Prep time and speaking time notifications, Free to use

**Features:** macOS Compatibility

**In-app purchases:** none


### Opal

[App page](https://appshunter.io/ios/app/opal-screen-time-control/id1497465230)

**Currently charting:** #42 Top Grossing · Productivity, #82 Top Free · Productivity (US App Store)

This app helps you regain control of your digital life by limiting screen time and blocking distracting applications. It offers features like app limits, focus modes, and progress tracking to boost productivity and well-being. Achieve your goals by reducing phone usage and staying focused.

**Highlights:** Screen time control, App blocker, Focus difficulty settings, App usage limits, Mindful block screens, Focus reports and scores, Calendar integration for routines

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Weekly Plan | $9.99 | per 7 days |
| Opal Student Weekly | $9.99 | per 7 days |
| Monthly Plan | $19.99 | per month |
| Monthly Plan | $19.99 | per month |
| Opal Pro Subscription | $49.99 | per year |
| Yearly Plan | $99.99 | per year |
| Yearly Plan | $99.99 | per year |

**What reviewers like**

- 👍 Helps reduce screen time
- 🚀 Effective at blocking distracting apps
- 💡 Customizable blocking schedules
- 🎨 Aesthetically pleasing design
- 🔒 Difficult to bypass blocks

**What reviewers complain about**

- 💰 Expensive subscription
- 🐛 Buggy and unreliable at times
- 🔓 Easy to bypass blocks in some cases
- 🤯 Can be frustrating when blocks don't work as expected
- 🕰️ Longer wait times to take breaks

**Reported bugs**

- Blocks apps that are not selected
- Inconsistent behavior when ending focus sessions
- Crashes when trying to manage blocked apps
- VPN issues causing other connectivity problems

**Requested features**

- Allow more customization of blocked apps
- Integrate with more productivity tools
- Provide more granular time tracking and reporting
- Offer a one-time purchase option
- Improve stability and reduce bugs


## Frequently asked questions

### Is Impromptu Topic Generator free?

Impromptu Topic Generator is free to download, with no in-app purchases.

### Is Opal free?

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

### Which has better reviews, Impromptu Topic Generator or Opal?

Opal is rated higher. Impromptu Topic Generator averages 3.2 out of 5 from 5 ratings, while Opal averages 4.7 from 91K ratings.

### Do Impromptu Topic Generator or Opal have ads?

Neither Impromptu Topic Generator nor Opal shows ads.

### Which is updated more often, Impromptu Topic Generator or Opal?

Impromptu Topic Generator ships an update every 26 months, and Opal every 5 days. Most recently, Impromptu Topic Generator was updated on November 2, 2026 and Opal on November 5, 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.*