1Lens vs Plot Spark
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
1Lens
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1Lens is a metacognition practice and reflection tool. Choose a mental model you want to work on, record your decisions and actions in everyday situations, and look back on what changed. β’ Practice mental models: Start with built-in models such as First Principles, Win-Win Thinking, and Growth Mindset, or create your own. Keep up to three models active to stay focused. β’ Record wins and misses: Note what went well or where you fell short. Make a specific βIfβ¦thenβ¦β plan for your next attempt. β’ Reflect with voice: Record your thoughts and, when supported by the device, transcribe them with Appleβs system speech recognition. Recordings, transcripts, and practice entries stay on your device. β’ Review your progress: Browse recent daily entries and reflection history, and use your practice streak to notice your rhythm. β’ Make it yours: Edit or archive models, then reactivate them from the full list whenever you are ready. Optional reminders can help you build a routine. Take a moment to notice how you think, then choose what to do next. Microphone access is used to record voice reflections. Speech recognition access is used for on-device transcription. Recording starts only when you choose to begin.
Plot Spark
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Plot Spark ignites your next idea - with a single roll. Whether you're working on a novel, a short film, a tabletop RPG campaign, or just need a story for tonight: Plot Spark instantly delivers a character, a conflict, and a setting - random, unexpected, and inspiring. HOW IT WORKS Pick a kit, roll the dice - and get a complete story prompt with character, conflict, setting, and a wild twist. Sounds too simple? That's exactly the point. Prefer instant results over a dice animation? Turn the roll animation off and get straight to the prompt. ELEVEN KITS, EVERY GENRE Plot Spark ships with eleven curated kits - from neon-soaked noir and cosmic comedy to high-seas adventure, Cold War espionage, and Victorian hollow-earth expeditions. And you can create your own kits and fill every slot with your own ideas - tuned to exactly the tone you need. JOURNAL & MARKDOWN EXPORT Save every hit straight to your journal. Write notes, develop the idea, or let it simmer - your best prompts won't get lost. Export any entry, or your whole journal, as clean Markdown and keep working in your favorite writing app. FROM SPARK TO GAMEBOOK Your exported prompts are plain Markdown - the same format Story Weaver speaks, our free open-source language for writing branching gamebooks with choices, dice, and fights. Grow a rolled prompt into a full playable adventure: github.com/ComicSans/story-weaver NO SUBSCRIPTION. NO ACCOUNT. Plot Spark needs no internet connection, no login, and no subscription. Your ideas stay on your device. Perfect for: β’ Novelists and screenwriters β’ Tabletop RPG game masters β’ Short story writers β’ Game designers β’ Gamebook authors β’ Anyone who needs a creative spark
Screenshots
Verdict
The clearest difference is update cadence: 1Lens at daily against Plot Spark's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
1Lens ships an update daily, Plot Spark every 2 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.
| Parameter | 1Lens | Plot Spark |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily β better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad β better |
| Requires iOS | 17.1 β better | 18.0 |
| Further details β not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | εδΌ ζ± | Tobias Reithmeier |
In-app purchases
1Lens
No in-app purchases
Plot Spark
No in-app purchases





