Caliban Below vs Postplane
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caliban Below
Trapped in an endless dream, you must uncover the secrets of your noble lineage and a dark inheritance. Explore ancient ruins and a mysterious realm below to find clues about your past and the events that led to your family's estrangement. This immersive narrative experience delves into centuries of darkness.
- Immersive storytelling
- Explore ancient ruins
- Uncover family secrets
- Mysterious subterranean realm
- Interactive narrative
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The sun will not rise, just endless moons - and you, Caliban, must try to learn why you have become trapped in a dream. It is 1680, Northern Italy. You are the last heir of a noble lineage, struggling to understand your dark inheritance. Explore the ruins of the family estate, and the incredible realm below, seeking clues to your past, and to the events that severed you from your family long ago. The darkness below reaches back centuries, and your place in this story is about to become terrifyingly clear. Caliban Below is a short story from the world of The Abbot's Book, created by the academy award winning talent of Blackthorn Media. This tale is made as a stand-alone piece, but is also part of a much larger world. We love the possibilities for storytelling in AR. The world of The Abbot's Book is enormous, and we hope to tell far more of this tale in time. Please enjoy this chapter with our compliments and share it with friends if you like it!
Postplane
A digital canvas for collaborative expression and communication. Share your creations instantly with others viewing your postplanes for synchronized interaction.
- Digital canvas for self-expression
- Collaborative content creation
- Instantly synchronized communication
- Shareable postplanes
- Cross-device compatibility
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Postplane is a digital canvas that you can use to express yourself and collaborate with others. The contents you create are visible to anyone viewing your postplanes to facilitate instantly synchronized collaborative communication.
Screenshots
Verdict
The clearest difference is rating: Postplane at 4.6 against Caliban Below's 3.8. Postplane also leads on review sentiment (80% vs 60%). Caliban Below's advantage is iOS requirement (12.0 vs 15.0). On price, ratings volume, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
Postplane holds the better App Store score, 4.6 against 3.8. Both are backed by a comparable volume of ratings — 13 and 11 respectively. Written reviews point the same way: 60% of Caliban Below's written reviews are positive against 80% of Postplane's.
Caliban Below ships an update every 2 weeks, Postplane every 10 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.
| Parameter | Caliban Below | Postplane |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (13 ratings) | 4.6 (11 ratings) — better |
| Positive reviews | 60.0% of reviews | 80.0% of reviews — better |
| Number of ratings | 13 — better | 11 |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 776 MB | 50 MB |
| Age rating | 9+ | 4+ |
| Developer | Blackthorn Media, LLC | Postplane LLC |
Customer experience
Caliban Below
Postplane
In-app purchases
Caliban Below
No in-app purchases
Postplane
No in-app purchases
Questions
Is Caliban Below free?
Is Postplane free?
Which has better reviews, Caliban Below or Postplane?
Do Caliban Below or Postplane have ads?
Which is updated more often, Caliban Below or Postplane?
Other comparisons
