Nuntly vs turboSMTP
Nuntly
nuntly.comturboSMTP
turbosmtp.comSide by side
| Figure | Nuntly | turboSMTP |
|---|---|---|
| Price from | €10/mo | €14.95/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 5 | 18 |
| Spec score · Transactional Email Software | 8.8 (#5) | 8.7 (#8) |
| Spec score · Transactional email services | 8.8 (#6) | 9.1 (#3) |
| Dedicated IPs | Dedicated IPs are available as an add-on on paid plans shown in the comparison. | Yes |
| Free plan | Yes | No |
| Integrations | Nuntly integrates with AI agents through structured JSON, thread context, agent memory, and a Reply API. | A Zapier app launched with Send Email and Find Email Status actions for connecting CRMs, forms, spreadsheets and other Zapier applications. |
| Monthly send limit | 10000 | 15000 |
| SDKs | Nuntly offers type-safe SDKs with built-in retries, pagination helpers, typed errors, and documented TypeScript and Java clients. | Official C# and PHP SDKs are published as open-source libraries and cover sending, relay statistics, suppressions and email validation. |
| Security | Nuntly states that data is encrypted at rest with AES-256 and in transit with TLS 1.3, with API keys hashed or encrypted and rotatable without downtime. | Pricing lists SPF/DKIM authentication, API keys, custom sending domains with SPF/DKIM/DMARC, and two-factor authentication as security and compliance features. |
| Support | The pricing page lists email support for Free and Starter, email plus Slack support for Scale, and priority support for Enterprise. | The company states that ticket, live-chat and phone support are available around the clock and handled by human staff. |
| Webhooks | Webhook deliveries support automatic retries, exponential backoff, filtering, replay, payload inspection, and cryptographic signature verification. | HTTPS webhooks report delivery events such as delivered, deferred, bounced and dropped, plus opens, clicks, unsubscribes and spam reports. |
| What it does | Nuntly is a developer-first email platform for sending, receiving, replying to, tracking, and debugging transactional email through one REST API. | turboSMTP provides hosted SMTP relay and API infrastructure for transactional, marketing and newsletter email delivery. |
Plans
Nuntly
- FreeFree
- Starter€10 a month
- Scale€68 a month
- EnterprisePriced on request
- FreeFree
turboSMTP
- FreeFree
- Basic€14.95 a month
- Pro€79.95 a month
- Silver€49 a month
- Gold€92 a month
- Resell€270 a month
- Titanium€450 a month
- Diamond€790 a month
- FREEFree
- BASIC€14.95 a month
In their own words
Nuntly
Nuntly is a developer-focused email platform for sending and receiving transactional email, replying to messages, and tracking activity through one REST API. It supports single or bulk sends, scheduled or immediate delivery, and messages with or without templates. For inbound email, it provides custom inboxes, stored messages, thread grouping, attachment access, webhooks, and a Reply API. The REST API covers domains, API keys, webhooks, analytics, sending, receiving, and team members; documented SDKs include TypeScript and Java. Webhooks expose delivery, open, click, bounce, complaint, and inbound-message activity, with retries, replay, filtering, payload inspection, and signature verification. Logs are retained for up to 30 days. Nuntly says data is encrypted in transit and at rest, and hosted and processed in Europe by default. Its Free plan requires no card and costs nothing; it allows 3,000 emails monthly, 100 daily, one domain, and one inbox. Starter costs €10 a month and allows up to 10,000 emails monthly. Nuntly is headquartered in Châtillon, France.
turboSMTP
turboSMTP is a cloud SMTP service for sending email messages and newsletters, with statistical analysis for individual and aggregate messages. Its SMTP API supports transactional messages such as login confirmations, welcome messages, and receipts from a website or app. The dashboard tracks clicks and opens in real time, while listed tools manage bounces, spam, and unsubscribes. Deliverability features include smart routing, custom tracking domains, and email validation before campaigns. An email marketing tool can design, send, and track campaigns using turboSMTP delivery infrastructure. The service lists SMTP relay, email templates, delivery event webhooks, and a dedicated IP option; inbound email is not supported. It offers a free plan allowing 200 emails per day for the first six months. Basic costs €14.95 a month for 15,000 emails per month; Pro costs €79.95 a month for the same send limit and up to 100 subaccounts. Other listed plans sell email credits, which expire one year after purchase. Platforms include Android, API, iOS, and web. The maker advertises 24/7 multilingual support by phone, chat, and email.