ANGLE vs Story World Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ANGLE
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Create conversations. Shift perspectives. Turn them into video. Angle is a one-person, multi-role chat app that lets you switch between yourself and other characters as you write a conversation. Turn your conversations into vertical videos, explore your thoughts from someone else’s point of view, or bring imagined character interactions to life. Create chat videos. Organize your thoughts. Create stories. Three ways to use one unique chat experience. ■ 1. Create Chat Videos Turn one-on-one and group conversations into vertical videos where messages appear in sequence. Once you have written a conversation, simply choose the part you want to include and customize how it appears. No advanced video-editing skills are required. ・Create videos from one-on-one or group chats ・Choose the starting and ending messages ・Display speaker names above messages ・Show or hide dates and sent times ・Include the input bar or group member bar ・Adjust playback speed from 0.5x to 2.0x ・Export as a 9:16 vertical MP4 video ・Preview the finished video ・Save it to your device or share it on social media Turn funny exchanges, group conversations, character dialogue, and original stories into videos you can share. ■ 2. Organize Your Thoughts “What would they think about this?” In Angle, you write both sides of the conversation yourself. Instead of having AI generate an answer, you step into another person’s point of view. Playing different roles can reveal thoughts and feelings that are difficult to notice from only one perspective. Use Angle when you want to: ・Organize thoughts that keep circling in your mind ・Consider a decision from different perspectives ・Imagine how another person might feel ・Practice a difficult conversation ・Ask your future self for advice ・Borrow the viewpoint of a more positive person ・Explore the different voices inside your mind Moving an internal conversation onto the screen can help you examine your thoughts more objectively. ■ 3. Create Stories Play imagined characters and create conversations, scenes, and stories. Angle supports both one-on-one dialogue and group conversations with multiple characters. Writing from each character’s personality and point of view can help you understand their voice and relationships more deeply. Use Angle to: ・Create dialogue between original characters ・Draft scenes for comics, novels, or games ・Explore a character’s personality ・Test dialogue and conversational pacing ・Imagine conversations with characters you love ・Turn a finished scene into a vertical video Use it for everything from early story ideas to shareable character conversation videos. ■ Main Features ・One-on-one chats ・Group chats ・Custom avatars ・Switchable speakers ・Custom message bubble colors ・Custom chat backgrounds ・Light and dark modes ・Notes, pinned messages, and conversation search ■ Angle Premium ・Create unlimited chat videos ・Create unlimited conversation partners ・Unlock all backgrounds and bubble styles ・Export chat history as text or CSV ・Back up and restore your data Create a video. Explore another viewpoint. Bring a story to life. Make the conversations in your mind visible with Angle.
Story World Builder
This app assists writers in developing stories by offering AI-powered tools for character interaction, plot structuring, and worldbuilding. It helps generate scenarios, manage character details, and draft manuscripts, with export options for various formats.
- AI-driven scenario generation
- Interactive character chat
- Systematic worldbuilding
- Detailed character management
- Episode and scene structuring
- AI writing assistant
- Export to PDF/Markdown
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Story World Builder is a story-planning tool designed by webtoon and web novel professionals — for when an idea strikes, when you're shaping a character, when the plot gets stuck. Key Features 1. Chat with Your Characters Talk directly to the characters you've created. They answer as themselves, drawing on the personality, speech, relationships, and world you wrote. Conversations carry over; start fresh anytime. 2. Build a Scenario — on a proven story structure Pick a few keywords and a story structure, and AI proposes three scenarios in different directions. Ki-Sho-Ten-Ketsu, Three-Act, Five-Act, the Story Circle, the Hero's Journey, or Save the Cat — instead of a blank page, work through a structure that has carried stories. Pick one and it expands into an Episode 1 plot draft, with its cast added to your Characters in one tap. 3. Worldbuilding Record your world systematically — background, rules, magic systems, and places. Write what doesn't exist in your world in the "Taboos / Limits" field, and the AI won't cross that line in any suggestion. The AI assistant expands settings and checks for contradictions. 4. Character Management Design characters in detail — personality, MBTI, appearance, abilities — and see how they connect on the relationship map. 5. Plot Builder Structure your story with episodes, scenes, and cuts. AI suggests next scenes, twists, cut ideas, and feedback. 6. Write a Full Episode Manuscript (1 free · AI Pass) Turn an episode you've filled out into prose you can publish, following what you wrote — world, characters, relationships, and your "Taboos / Limits". It picks up the flow of earlier episodes and the voice of your last manuscript, so names and tone stay steady. Ask for a revision — change only the part you picked, or rewrite it all. Copy it, or send it straight to a messaging app. 7. Timeline See how characters' stories cross on a subway-style map: one colored line per character. Tap a stop to expand it; tap a name to follow one character. With world, characters and plot already built, AI fills in what each character is doing at each hour in short lines, without repeating the plot. 8. AI Writing Assistant - Start from a scene you have in mind: write down one scene and we build the project and its world from that alone. - Naming Studio: pick what you're naming — character, place, faction, magic, item, or monster — add a mood, and get 15 names that fit your world, each with a note on how it reads. - Dialogue and scene ideas whenever you're stuck. - Mood presets: romance, fantasy, mystery, slice of life, dark, or comedy. Conversations are saved per project. 9. Export as PDF or Markdown Pick the sections you want — world, characters, scenario, plot, manuscript, timeline, scene memos — as one PDF, or as Markdown text for Obsidian or Notion. The relationship map comes as an image, and the PDF opens anywhere. Good to Know - Creative features, saving, and PDF export are free. - The AI Assistant is free for 10 uses a month, and character chat for 10 replies a month. - For more AI uses or chat, subscribe to AI Pass. Manuscripts: 1 free to try (5 revisions); Light 1 a month, Standard 5. Subscription Details - AI Pass Light: $1.99 per month / $19.99 per year - AI Pass Standard: $3.99 per month / $39.99 per year - First-time subscribers get a 14-day free trial, then it renews at the price above. Cancel 24+ hours before the trial ends to avoid charges. - Payment is charged to your Apple Account at confirmation of purchase. - Your subscription renews automatically for the same period unless cancelled at least 24 hours before the end of the current period. Renewal is charged within 24 hours before the period ends. - Manage your subscription or turn off auto-renewal in Settings > Apple Account > Subscriptions. - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://pentagonal-clover-eec.notion.site/38381493fd0e80d69fb6ea34fd6a83ef
Screenshots
Verdict
The clearest difference is ads: Story World Builder at none against ANGLE's shown. Story World Builder also leads on update cadence (every 3 days vs monthly). ANGLE's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support 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. ANGLE sells 3 in-app purchases, starting at $2.99 per month and Story World Builder sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
ANGLE ships an update monthly, Story World Builder every 3 days. The most recent releases landed on October 28, 2026 and November 1, 2026 respectively.
| Parameter | ANGLE | Story World Builder |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Monthly | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 96 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Kota Suzuki | JIhyoung Seol |
In-app purchases
ANGLE
- Monthly Plan$2.991 Month
- Yearly Plan$9.991 Year
- Lifetime Plan$19.99
Story World Builder
- AI Pass Light Monthly14 Days trial$1.991 Month
- AI Pass Standard Monthly14 Days trial$3.991 Month
- AI Pass Light Yearly14 Days trial$19.991 Year
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- AI Pass Standard Yearly14 Days trial$39.991 Year









