Comparison

Plot Spark vs Tonespin

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Plot Spark

Features
Read full description

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: โ€ข Novelists and screenwriters โ€ข Tabletop RPG game masters โ€ข Short story writers โ€ข Game designers โ€ข Gamebook authors โ€ข Anyone who needs a creative spark

About

Tonespin

Features
Read full description

Rewrite any message in the right tone, on your iPhone or iPad. One purchase, no subscription, no account, no word limits. Paste or share text, pick a tone, and get a rewrite you can copy or send. On devices with Apple Intelligence (iOS 26 or later, turned on in Settings), Tonespin uses Apple's on-device language model. On every other device it uses its own deterministic rule engine. Either way your text is rewritten on the device; Tonespin has no server and no account. REWRITE - Six tones: Formal, Casual, Professional, Playful, Concise, Friendly. - Custom tone profiles: start from a tone and choose contractions, filler removal, emoji and punctuation. - Length control from much shorter to much longer, and formats for bullets, numbered steps, email or a short message. - Try again for a different wording, then swap single words in Word Studio. NEW IN 4.0 - Share extension: select text in Mail, Notes, Messages or Safari, tap Share, choose Tonespin, pick a tone and copy the result. - Shortcuts and Siri: "Rewrite Text" and "Rewrite with Preset" actions return the rewritten text to your shortcut. - Saved presets: keep your favorite tone, length and format together and apply them with one tap. - Fact check on every rewrite: numbers, times, prices, links, email addresses and @handles from your original are checked, and anything that changed or went missing is flagged before you send. - Searchable history: every rewrite is kept on the device (you can turn this off), with favorites, "rewrite again" and plain-text export. MESSAGE PACKS Build Professional, Friendly and Concise versions of one message side by side, add exact phrases that must stay, and save or export the comparison. CHECK YOUR WRITING Readability scores, clarity flags (passive voice, hedging, long sentences), text statistics and platform-fit meters for posts and texts. WHAT TO KNOW - The rule engine changes words, contractions, filler and punctuation. It does not restructure sentences the way a language model does. Apple Intelligence rewrites need a supported device with Apple Intelligence turned on. - Tonespin checks exact strings, not facts or meaning. Read every rewrite before you send it. - Nothing is sent automatically. Sharing exports only the text you choose. - The share extension does not save history; open the app for history and presets. iPhone and iPad.

Screenshots

Plot Spark3 screens
Tonespin4 screens

Verdict

The call

The clearest difference is price: Plot Spark at Free against Tonespin's $0.99. Tonespin's advantage is update cadence (every 6 days vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Plot Spark is free to download; Tonespin costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Plot Spark ships an update every 2 months, Tonespin every 6 days. Both last shipped on October 31, 2026.

Scorecard2 real differences ยท 4 level
Plot Spark versus Tonespin: the parameters behind the verdict, then further details
ParameterPlot SparkTonespin
PriceFree โ€” better$0.99
Update frequencyEvery 2 monthsEvery 6 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 โ€” better
Further details โ€” not scored
Size6 MB2 MB
Age rating4+4+
DeveloperTobias ReithmeierRobert Corbin

In-app purchases

None

Plot Spark

No in-app purchases

None

Tonespin

No in-app purchases

Questions

Is Plot Spark free?
Plot Spark is free to download, with no in-app purchases.
Is Tonespin free?
Tonespin costs $0.99, with no in-app purchases.
Do Plot Spark or Tonespin have ads?
Neither Plot Spark nor Tonespin shows ads.
Which is updated more often, Plot Spark or Tonespin?
Plot Spark ships an update every 2 months, and Tonespin every 6 days. Most recently, Plot Spark was updated on October 31, 2026 and Tonespin on October 31, 2026.

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