DeepL still produces the best translations in its class.
Naturalness, terminology, sentence segmentation. Judged purely on output quality, there’s a solid case for it. This article is not an argument to stop using DeepL.
But among people paying for Pro, there’s a mix of those who’d be fine on the free tier and those better served by a different kind of tool entirely. Let’s separate them.
What Pro actually changes
The gap between free and Pro isn’t quality — it’s limits.
| Free | Pro | |
|---|---|---|
| Text translation volume | Capped | Unlimited |
| File translation (Word, PDF, etc.) | Limited count | Substantially expanded |
| Glossaries | Limited | Expanded |
| Data handling | — | Option not to retain translated text |
The individual Starter plan runs roughly $8.74–$10.49/month billed annually (sources vary; monthly billing costs about 50% more), so about $105–126 a year.
So Pro buys volume, files, and data handling. The quality on a single sentence is the same as free.
Three cases where cancelling would genuinely hurt
Plainly: keep Pro if any of these apply.
1. You translate whole documents. Contracts, specifications, papers, manuals. Throwing a Word or PDF file in and getting the layout back translated is hard to replace, and the free tier’s file limits make it unworkable for real use.
2. You maintain a glossary. If product names, internal terminology, or industry-specific renderings must stay consistent, glossaries are non-negotiable. “The same term always translates the same way” is worth money in plenty of jobs.
3. You need translated text not to be retained. For confidential material, the data handling terms are the reason to subscribe. That isn’t a pricing question.
If any of those is you, stop comparing. Pro is correct.
What you might not be using
But plenty of Pro subscribers mostly do this:
- Reading English documentation and checking one sentence
- Decoding the implied meaning in an email from abroad
- Following GitHub issues and release notes
- Reading an abstract to decide whether to read the paper
None of that touches volume caps, file translation, or glossaries. It’s short-sentence translation and nothing else.
And for that use, the deciding factor isn’t output quality. It’s how many steps a lookup takes.
Seven actions per sentence
Translating one line actually involves:
Select → ⌘C → hunt for the browser tab → open the translator → click the input → ⌘V → read → return → find your place again
And you lose your place every time. In technical writing and academic papers, meaning depends on the connections between sentences, so leaving once per sentence degrades comprehension.
MacSide AI’s ⌘C+C removes the trip. Select text, press ⌘C twice, and a panel opens over the page you’re reading with the answer. No tab switch (details here).
And because the instruction it runs is configurable, the same shortcut can explain a term, summarize, or simplify instead of translating.
| DeepL Pro | MacSide AI Pro | |
|---|---|---|
| Output quality | Best in class | Good |
| Whole-document translation | Yes | — |
| Glossaries | Yes | — |
| No-retention data handling | Yes | — |
| One sentence while reading | Requires a tab switch | ⌘C twice |
| Instructions other than translate | — | Yes (summarize, explain, simplify) |
| Price | ~$105–126/year | $2.99/mo or $59.99 one-time |
One question
Did you upload a file to DeepL last month?
If yes, keep Pro. File translation and glossaries have no substitute here.
If no, you’re using short-sentence translation only. Whether that’s worth $105–126 a year is worth thinking about once.
Drop to free and see whether anything breaks. If nothing does, that’s your answer. If something does, you needed Pro. Testing beats deliberating.
Or run both
You don’t have to pick one.
- Documents — DeepL (you can even subscribe only in the months you need it)
- A sentence while reading — ⌘C+C
Splitting this way means you open DeepL far less often, so the free tier’s limits become much easier to live within.
Frequently asked questions
Is the translation quality the same as DeepL?
No. A service optimized specifically for translation behaves differently from prompting a general model. It’s more than sufficient as a reading aid, but for translations you’ll deliver as work product, DeepL is the better tool.
Can it translate document files?
No. For whole-file translation, use a dedicated service.
Are glossaries supported?
There’s no glossary feature, though you can write “render this term as X” into the prompt.
Can it go from my language into English?
Yes — configure the prompt and the same shortcut handles the reverse direction.
Can I use it with free DeepL?
Yes, and that combination is arguably the practical setup.
Quality and distance are separate problems
Translation comparisons focus almost entirely on output quality. That’s fair — but what usually limits people day to day is distance.
However good the translation, if looking it up is annoying, you’ll stop looking things up. And the sentences you didn’t check pass by half-understood. That accumulation is what leaves your comprehension vague at the end.
Whether to cancel DeepL Pro isn’t a quality question. It’s whether you used the volume and the file translation you’re paying for last month.