Schrodinger's Box vs Parallel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Schrodinger's Box
Engage with daily philosophical dilemmas and thought experiments. Make irreversible choices within a time limit and explore various perspectives on your decisions. This app focuses on serious thinking rather than gamification.
- Daily paradoxes and ethical dilemmas
- Timed decision-making
- Irreversible choices
- Philosophical perspective insights
- Privacy-focused, on-device storage
- Archive access with Pro version
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Schrödinger’s Box Most apps are designed to absorb time, smooth friction, and reward passivity. They assume you are bored and want to stay that way. Schrödinger’s Box was built as a refusal. Once a day, the app presents a single paradox, ethical dilemma, or thought experiment drawn from philosophy, science, and moral reasoning. You are given limited time. You must choose. There is no neutral option, no skipping, and no undo. When you decide, the question collapses, and the comfort of ambiguity collapses with it. This is not trivia, a quiz, or a game. The decision is the experience. How It Works • Once per day One challenge. No feeds, no binging, no endless scrolling. • Timed You cannot deliberate forever. The clock matters. • Irreversible Once you choose, it’s recorded. Just like real decisions. • Interpretive, not corrective Afterward, you’re shown multiple philosophical perspectives on the choice you made. There is rarely a single “right” answer. What You’ll Encounter Schrödinger’s Box draws from centuries of inquiry into questions that shape how we live: • Identity and persistence over time • Free will and causality • Moral judgment under constraint • Infinity, limits, and paradox • Mind, consciousness, and artificial intelligence These are not abstract puzzles. They are the same questions that quietly structure our assumptions about responsibility, agency, and meaning. Educators have long used dilemmas like these as intellectual icebreakers. They wake people up. They expose hidden intuitions. They reveal disagreement immediately. Schrödinger’s Box brings that experience into a daily, private ritual. What It Is Not • Not self-improvement • Not productivity • Not optimization • Not social media There are no scores, no streak pressure, and no behavioral manipulation. The goal isn’t to make you better. It’s to take thinking seriously. Privacy by Design Your choices are stored only on your device. There are no accounts. No tracking. No data collection. Your philosophical record belongs to you alone. Pro Version A one-time purchase unlocks: • Full access to the archive • Complete choice history • Advanced and harder challenges • Streak and pattern insights No subscriptions. No ads. Lifetime access. Open the box. Face uncertainty. Make a decision.
Parallel
Explore historical connections by viewing multiple timelines simultaneously. Discover who lived at the same time as historical figures and events. Create custom collections or use curated ones to delve into specific eras and topics.
- View multiple historical timelines
- Discover contemporaries at a glance
- Access concise biographies with Wikipedia links
- Create custom history collections
- Offline functionality
- Private and no tracking
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Who lived at the same time as Mozart, Van Gogh, or Napoleon? Parallel lays out several timelines at once, and the connections that usually stay hidden appear at a glance. It's your tool for assembling history around what interests you. Ten curated collections come built in, from earth history and the arts to sciences, rulers, empires, buildings, and the events that shaped history. They make it easy to start and give you a taste of what Parallel can do. The rest is yours to shape. For the curious, for the classroom, for everyone who loves history. WHAT YOU CAN DO • Swipe and zoom through the millennia, from antiquity to today. • Line up exactly the collections that fascinate you. • Highlight a person and see their contemporaries at a glance, while everything else fades into the background. • Open any entry for a clear, concise biography or summary, with a link to Wikipedia. • Bring dates and the Wikipedia link straight from Wikidata into your own entry. • Follow a single thread through time, filtered by topic, place, era, and more. • Create your own collections and fill them with what matters to you. • Zoom out from a single year all the way to 13.8 billion years. Every built-in entry is carefully researched, historically grounded, and fact-checked. Try it for free Ancient Rome is included as a ready-made sample collection, no Pro needed. In a few seconds you see how a collection comes together, and it stays with you afterwards. Buy once, no subscription. You buy Parallel just once. The Pro upgrade lifts every limit: unlimited collections and entries, creating and filling your own collections from a spreadsheet or from copied text, your own copies of the built-in collections, and exporting the whole timeline as a PDF. No hidden costs. If you want to go deeper into specific topics, optional premium collections are available. Private and offline Your entries stay on your iPhone. No account, no sign-up, no tracking. The app works offline. Only the Wikidata look-up needs an internet connection. History belongs to everyone, but your data belongs to you.
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Verdict
The clearest difference is rating: Schrodinger's Box at 5.0 against Parallel's 4.5. On price, review sentiment, ratings volume and update cadence 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. Schrodinger's Box sells 1 one-off in-app purchase and Parallel sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Schrodinger's Box holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 24, 2026.
| Parameter | Schrodinger's Box | Parallel |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 — better | 2 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Justin Neuman | Anatol Knotek |
Customer experience
Schrodinger's Box
Parallel
In-app purchases
Schrodinger's Box
- Pro Upgrade – Lifetime Access$4.99
Parallel
- Painters & Sculptors XL$1.99
- Buildings XL$1.99
- Science & Technology XL$1.99
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- Parallel Pro$3.99
Questions
Is Schrodinger's Box free?
Is Parallel free?
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