# Study Deck vs DelayLens

The clearest difference is price: DelayLens at Free against Study Deck's $7.99. DelayLens also leads on update cadence (every 3 weeks vs every 3 months). Study Deck's advantage is in-app purchases (none vs 3). On rating, ratings volume, ads and device support there is nothing between them.

DelayLens is free to download; Study Deck costs $7.99 up front. DelayLens sells 3 in-app purchases, starting at $1.99 per month. Study Deck asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Study Deck against 5.0 for DelayLens. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Study Deck ships an update every 3 months, DelayLens every 3 weeks. The most recent releases landed on September 6, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Study Deck | DelayLens |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/study-deck-memory-flashcards/id6759115906/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/delaylens-procrastination-log/id6790460890/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 32 MB | 14 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Esther Ramos](https://appshunter.io/developer/1768336660) | [子莹 李](https://appshunter.io/developer/1896745961) |

## What reviewers say

### Study Deck

[App page](https://appshunter.io/ios/app/study-deck-memory-flashcards/id6759115906)

Transform study materials into organized memory cards for faster learning and better retention. Track progress with visual graphs and maintain study habits with a personal calendar. Enjoy an ad-free, distraction-free learning experience.

**Highlights:** Create unlimited custom decks and cards, Visualize learning progress with graphs, Personal study calendar and habit tracking, AI-powered flashcard creation, Ad-free and distraction-free interface

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

**In-app purchases:** none


### DelayLens

[App page](https://appshunter.io/ios/app/delaylens-procrastination-log/id6790460890)

This app helps you recover from procrastination by logging the experience, identifying causes, and guiding you to take one small next step. It offers focused work sessions and provides insights into what helps you restart.

**Highlights:** Log procrastination time, Identify causes and add notes, Define small next actions, Set focus sessions (5, 15, 25 min), Review daily and weekly trends, Gain insights into method effectiveness

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DelayLens Pro Monthly | $1.99 | per month |
| DelayLens Pro Yearly | $9.99 | per year |
| DelayLens Founder Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Study Deck free?

Study Deck costs $7.99, with no in-app purchases.

### Is DelayLens free?

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

### Which has better reviews, Study Deck or DelayLens?

Study Deck and DelayLens are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Study Deck or DelayLens have ads?

Neither Study Deck nor DelayLens shows ads.

### Which is updated more often, Study Deck or DelayLens?

Study Deck ships an update every 3 months, and DelayLens every 3 weeks. Most recently, Study Deck was updated on September 6, 2026 and DelayLens on September 12, 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.*