# Flexcil Note & Good PDF Reader vs Study Stack

The clearest difference is rating: Study Stack at 5.0 against Flexcil Note & Good PDF Reader's 4.4. Study Stack also leads on review sentiment (100% vs 59%) and in-app purchases (none vs 13). Flexcil Note & Good PDF Reader's advantage is ratings volume (403 vs 2) and update cadence (weekly vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Flexcil Note & Good PDF Reader sells 13 one-off in-app purchases. Study Stack asks for nothing beyond the download.

Study Stack holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Flexcil Note & Good PDF Reader has 403 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 59% of Flexcil Note & Good PDF Reader's written reviews are positive against 100% of Study Stack's.

Flexcil Note & Good PDF Reader ships an update weekly, Study Stack fortnightly. The most recent releases landed on September 27, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Flexcil Note & Good PDF Reader | Study Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (403 ratings)](https://appshunter.io/ios/app/flexcil-note-and-good-pdf-reader/id1531466462/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/study-stack/id1588432598/reviews)** |
| Number of ratings | **403** | 2 |
| Positive reviews | 59.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 227 MB | 1 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flexcil Inc.](https://appshunter.io/developer/1090873688) | [Erik Mederos](https://appshunter.io/developer/1591538592) |

## What reviewers say

### Flexcil Note & Good PDF Reader

[App page](https://appshunter.io/ios/app/flexcil-note-and-good-pdf-reader/id1531466462)

This app is a comprehensive note-taking and PDF reader designed for Apple devices. It allows users to edit PDFs, annotate documents, create bullet journals, and record audio, all while offering intuitive gesture controls and seamless integration with cloud services.

**Highlights:** Edit PDF pages, Annotate documents with gestures, Record and playback audio, Create bullet journals, Cloud sync across devices, Masking pen for precise annotations

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade product for old users | Free | one-time |
| Premium | $8.99 | one-time |
| Flexcil Standard | $9.99 | one-time |
| 2021-2022 Color Planner | $11.99 | one-time |
| Flexcil NEW Design Planner 22 | $11.99 | one-time |
| Premium & Toolbar Skin Pack | $12.99 | one-time |
| Hello Kitty Planner 2022 | $13.99 | one-time |
| My Melody & Kuromi Planner 22 | $13.99 | one-time |
| Standard & 21-22 Planner Pack | $14.99 | one-time |
| Standard & Design Planner Pack | $14.99 | one-time |
| Standard & 2023 Planner Pack | $14.99 | one-time |
| 2026 Ultimate Planner(Dated) : Pro | $15.49 | one-time |
| Nelna 6-in-1 Planner Bundle | $19.99 | one-time |

**What reviewers like**

- 🚀 Best Apps for STUDENTS!!! 😀😀
- 👍 Love this app
- 🚀 Powerful multi-page PDF viewer
- 👍 Great for studying
- 👍 Excellent app for note taking

**What reviewers complain about**

- 🐛 Crashes and performance issues
- 🐛 Syncing and backup problems
- 🐛 Buggy handwriting recognition
- 🐛 Unreliable palm rejection
- 🐛 Missing key features from previous version

**Reported bugs**

- Sudden data loss and file deletion
- Inability to restore purchases
- Frequent app crashes and freezes
- Inconsistent behavior of undo/redo functions
- Annotations not exporting correctly

**Requested features**

- Add iCloud sync and backup
- Improve handwriting search and recognition
- Bring back reading mode and one-page scrolling
- Add more pen and brush options
- Allow customizing notebook paper styles


### Study Stack

[App page](https://appshunter.io/ios/app/study-stack/id1588432598)

Manage all your academic tasks, assignments, and exams in one organized place. Track daily courses, upcoming deadlines, and overdue work with clear visual indicators. Features a clean interface with light and dark mode support.

**Highlights:** Add courses with details, Track assignments and exams, View daily courses and upcoming deadlines, Mark assignments as complete, Sort lists by importance, Light and dark mode support

**In-app purchases:** none


## Frequently asked questions

### Is Flexcil Note & Good PDF Reader free?

Flexcil Note & Good PDF Reader is free to download, with in-app purchases available.

### Is Study Stack free?

Study Stack is free to download, with no in-app purchases.

### Which has better reviews, Flexcil Note & Good PDF Reader or Study Stack?

Study Stack is rated higher. Flexcil Note & Good PDF Reader averages 4.4 out of 5 from 403 ratings, while Study Stack averages 5.0 from 2 ratings.

### Do Flexcil Note & Good PDF Reader or Study Stack have ads?

Flexcil Note & Good PDF Reader shows ads; Study Stack does not.

### Which is updated more often, Flexcil Note & Good PDF Reader or Study Stack?

Flexcil Note & Good PDF Reader ships an update weekly, and Study Stack fortnightly. Most recently, Flexcil Note & Good PDF Reader was updated on September 27, 2026 and Study Stack on June 4, 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.*