# Skim vs Udio

> Skim: Find the five contract clauses most likely to cost you money before you sign
> Udio: Generate songs with vocals from text prompts and lyrics, with in-browser editing

- Skim profile: https://finderatlas.com/tools/skim
- Udio profile: https://finderatlas.com/tools/udio
- Comparison page: https://finderatlas.com/compare/skim-vs-udio
- Last reviewed: October 2026

## Verdict

Skim is listed under Productivity and Udio under Audio & Speech AI. Skim scores higher in FinderAtlas's editorial review (7.6 vs 6.9 out of 10). Only Udio has a free plan or trial. Only Udio is available on iOS.

### Choose Skim if

- You want a tool built for quick pre-signature review of leases, contractor quotes and terms of service, drafting a reply to push back on a clause.
- Simple one-off $9 price covering up to 3 documents, with no subscription.
- No account or prompt writing required.

### Choose Udio if

- You want a tool built for generating song drafts with vocals.
- Generates songs with vocals from a prompt and lyrics.
- Extend, remix and inpainting tools for editing tracks.

## Pricing

| | Skim | Udio |
| --- | --- | --- |
| Pricing model | Paid | Freemium |
| Free plan or trial | No | Yes |
| Starting price | $9 | $0 |

## Features

| Feature | Skim | Udio |
| --- | --- | --- |
| Five red flags | Yes | Not listed |
| Plain-English rewrite | Yes | Not listed |
| Paste-ready reply | Yes | Not listed |
| PDF upload or pasted text | Yes | Not listed |
| No account | Yes | Not listed |
| Free sample | Yes | Not listed |
| One-time pricing | Yes | Not listed |
| Text-to-song generation | Not listed | Yes |
| Extend and Remix | Not listed | Yes |
| Audio inpainting | Not listed | Yes |
| Audio-guided generation | Not listed | Yes |
| Voices | Not listed | Yes |
| Sessions | Not listed | Yes |
| Library and sharing | Not listed | Yes |
| iOS app | Not listed | Yes |

## Platforms

| Platform | Skim | Udio |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | No | Yes |
| Android | No | No |
| API | No | No |
| Browser Extension | No | No |

## Skim strengths

- Simple one-off $9 price covering up to 3 documents, with no subscription
- No account or prompt writing required
- Output includes a rewrite and a ready-to-send reply, not just a list of risks
- Free sample report to judge quality before paying
- Privacy page clearly states what is and is not stored

## Skim limitations

- Only the first 20,000 characters of a document are analyzed
- Document text goes to xAI, whose retention Skim does not control
- Fixed five-flag output with no follow-up chat
- Operator, company and contact details are not disclosed on the site
- Not legal advice, and no independent reviews found

## Udio strengths

- Generates songs with vocals from a prompt and lyrics
- Extend, remix and inpainting tools for editing tracks
- Free plan with daily and monthly credits
- Official iOS app alongside the web app
- Paid credit limits were doubled or raised after the UMG deal

## Udio limitations

- Downloads of audio, video and stems are disabled on all plans
- Free plan is capped at three 2-minute songs per day
- No public API and no Android app
- Licensed platform and new models are announced but have no published launch date

## FAQ

**Is Skim better than Udio?**

It depends on your workflow. Skim is built for quick pre-signature review of leases, contractor quotes and terms of service, drafting a reply to push back on a clause. Udio is built for generating song drafts with vocals.

**What are the key feature differences between Skim and Udio?**

Skim: Find the five contract clauses most likely to cost you money before you sign. Udio: Generate songs with vocals from text prompts and lyrics, with in-browser editing.

**Does Skim or Udio have a free plan?**

Udio has a free plan or trial; Skim is paid only.

**Which is cheaper, Skim or Udio?**

Skim starts at $9 and Udio starts at $0. See the pricing table above for what each tier includes.