NastyWriter vs Byline
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NastyWriter
This app automatically inserts insults before nouns as you type, highlighting them in peach. You can customize or remove insults and share the modified text as an image. It also offers Siri shortcuts for quick nastification and random insult generation.
- Automatic insult insertion
- Customizable insults
- Highlighted text
- Image sharing
- Siri shortcuts
- Random insult generator
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Some people on the internet can't even refer to people or things they don't like without gratuitously insulting them. NastyWriter automates this habit by automatically inserting insults before nouns as you are typing. Insults added by NastyWriter are highlighted in peach to distinguish them from your own text, and you can share the insult-ridden text as an image with the highlighting intact. You can remove or change any insults which don't fit in the context, to make sure your stream of nastiness is just right, even when it's just wrong. If there’s some text you want to nastify again and again, you can add a Siri shortcut to create a new nastified version of it in response to a voice command. In the Shortcuts app, you can also use the 'Nastify' shortcut to add insults to the result of another Siri command, or ask for a random insult.
Byline
Collaborate with others to create unique stories, one line at a time. Each participant only sees the previous line, fostering surprising and creative narratives. Share your finished tales with friends or the wider community.
- Collaborative story creation
- Line-by-line writing
- Public story posting
- Private group invitations
- Story titling and sharing
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Byline is a modern take on exquisite corpse. Serendipitous stories come together one line at a time, with each writer only seeing one line before theirs. Create the weirdest, funniest, spookiest, strangest story you can. POST DIRECTLY TO BYLINE Write the first line to your story and post on the site for strangers to finish. INVITE YOUR FRIENDS Write the first line to your story and then send it to a specific group of people you know. Once finished, you decide who can view. Once everyone has written their line, it's your turn to title and share the result in all its glory!
Screenshots
Verdict
The clearest difference is price: Byline at Free against NastyWriter's $0.99. Byline also leads on in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 2 months). NastyWriter's advantage is review sentiment (100% vs 86%) and iOS requirement (12.0 vs 26.0). On rating, ads 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
Byline is free to download; NastyWriter costs $0.99 up front. NastyWriter sells 1 one-off in-app purchase. Byline asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for NastyWriter against 4.9 for Byline. Both are backed by a comparable volume of ratings — 5 and 16 respectively. Written reviews are what separate them: 100% of NastyWriter's written reviews are positive against 86% of Byline's.
NastyWriter ships an update every 2 months, Byline every 2 weeks. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.
| Parameter | NastyWriter | Byline |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (5 ratings) — better | 4.9 (16 ratings) |
| Positive reviews | 100.0% of reviews — better | 85.7% of reviews |
| Number of ratings | 5 | 16 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 9 MB | 2 MB |
| Age rating | 9+ | 12+ |
| Developer | Angela Brett | App't |
Customer experience
NastyWriter
Byline
In-app purchases
NastyWriter
- Remove ads$0.99
Byline
No in-app purchases









