Choose Grammarly if you want
Everyday proofreading across many apps.
The strongest all-round checker here, with a free plan and corrections across many apps. Its AI rewrites and agents sit behind the $12 Pro plan, and Enterprise pricing is not public.
Choose Jasper if you want
Marketing teams that need brand governance.
A marketing platform with agents, content pipelines and brand controls for teams. Per-seat pricing and no free plan make it a poor fit for individual writers.
The main differences
- Only Grammarly runs on iOS.
- Only Grammarly runs on Android.
- Grammarly can be used for free; Jasper requires payment.
Side by side
 Grammarly |  Jasper | |
|---|---|---|
| Score | 91.0 | 72.0 |
| Rank in list | #1 of 6 | #6 of 6 |
| Price | Free plan, paid upgradesFree plan; Pro $12 a month with a 7-day trial; Enterprise by sales contact | SubscriptionPro $69 per seat a month, or $59 billed yearly; 7-day free trial |
| Free to use | Yes | No |
| Open source | No | No |
| Platforms | WebBrowser extensioniOSAndroidWeb, Browser extension, iOS, Android | WebWeb |
| Made by | Not stated | Not stated |
| Main focus | General writing in many apps | Marketing content |
| AI writing features | Yes, rewrites and text generation | Yes, agents and content pipelines |
| Story and plot tools | Not listed | Not listed |
| Team plans | Enterprise plan | Brand controls and team tools |
| Best for | Everyday proofreading across many apps | Marketing teams that need brand governance |
| Strengths |
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| Limits |
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| Links | Visit site | Visit site |
Questions about Grammarly vs Jasper
- Is Grammarly better than Jasper?
- Grammarly ranks higher in our list of AI writing assistants (#1 against #6, score 91.0 against 72.0). Grammarly is best for: everyday proofreading across many apps. Jasper is best for: marketing teams that need brand governance.
- Which is cheaper, Grammarly or Jasper?
- Grammarly: Free plan; Pro $12 a month with a 7-day trial; Enterprise by sales contact. Jasper: Pro $69 per seat a month, or $59 billed yearly; 7-day free trial.
- Do Grammarly and Jasper run on the same platforms?
- Grammarly supports Web, Browser extension, iOS, Android. Jasper supports Web.