Assistant alternatives by use case
Start with Orchid
Help with ongoing context
A personal assistant you text through iMessage or SMS for inbox triage, scheduling, meeting preparation, reminders and reusable workflows.
Unlike Dimension, it has no Slack.
Compare the assistants
| Assistant | A good fit for | Pricing | Meeting capture | |
|---|---|---|---|---|
 Dimension | Historical reference only; Dimension shut down on 20 May 2026. | Discontinued. Legacy marketing lists Free $0, Premium $29/mo, Pro $99/mo and Max $199/mo; FAQ prices conflict. | No | No |
| Orchid | Help with ongoing context | From $29.99/mo; flat paid subscription. No general free trial; targeted student, YC and migration offers. | No | Not confirmed |
 Boski | Everyday help in WhatsApp | $5.00/week, charged weekly (Stripe web checkout); 5,000 credits per one-week allowance period; no monthly or annual price published | Yes | No |
 Beside | Meetings and follow-up documents | $29.99-$99.99/mo flat per business, up to 20 seats (extra lines $4.99/mo each); no trial on Baseline, 7-day trial on Unlimited; a separate per-seat 'Beside plan' via App Store/Google Play is $29.99/mo or $199.99/yr (~$16.67/mo) | No | Yes |
 Rene | Research and document work | Free tier; Rene Pro $20/month or $200/year; Rene Premium $200/month (Apple in-app subscriptions). | Yes | No |
 Martin | Voice and mobile use | Basic $35/mo, $21/mo billed yearly; Pro $49/mo, $30/mo billed yearly; 7 days free | Yes | No |
Each alternative in detail
01
Orchid: help with ongoing context
A personal assistant you text through iMessage or SMS for inbox triage, scheduling, meeting preparation, reminders and reusable workflows.
- Remembers you between conversations
- Reads your existing files and apps
The trade-off. Unlike Dimension, it has no Slack.
Where you can use it
Web / desktop, iMessage
02
Boski: everyday help in WhatsApp
Personal agent that remembers preferences, works between conversations and checks in on progress toward goals. It also has what Dimension lacks: WhatsApp.
- Remembers you between conversations
- Reminds and nudges you
The trade-off. Unlike Dimension, it has no Slack or reusable instructions.
Where you can use it
Web / desktop, WhatsApp, iMessage, Email
03
Beside: meetings and follow-up documents
A business phone line whose AI receptionist answers the calls and texts you miss, books the job, writes the summary, and pushes it into your CRM. It also has what Dimension lacks: meeting capture.
- Joins and records your meetings
- Creates and edits documents
The trade-off. Unlike Dimension, it has no iMessage or Slack.
Where you can use it
Web / desktop, Mobile app
04
Rene: research and document work
Personal assistant coordinating conversations, connected apps and everyday tasks. It also has what Dimension lacks: web browsing.
- Creates and edits documents
- Browses the web for you
The trade-off. Unlike Dimension, it has no Slack or reusable instructions.
Where you can use it
Web / desktop, Mobile app, WhatsApp, iMessage, Telegram
05
Martin: voice and mobile use
A personal assistant you reach by phone call, text, WhatsApp, email or Slack that runs your calendar, inbox, reminders and notes. It also has what Dimension lacks: mobile app.
- Its own iPhone or Android app
- Voice messages
The trade-off. Unlike Dimension, it has no iMessage.
Where you can use it
Web / desktop, Mobile app, WhatsApp, Slack, Email
Dimension alternatives for workflow automation
Start with Duet
AI-led work across apps
A persistent, cloud-hosted AI coworker that runs a small business's recurring work on schedules, events, and demand, and builds and hosts the internal apps that work needs.
Duet: AI-led work across apps
A persistent, cloud-hosted AI coworker that runs a small business's recurring work on schedules, events, and demand, and builds and hosts the internal apps that work needs.
Pricing. $20–$200/month (7-day free trial, no card required)
- Build workflows with natural language
- Autonomous agents
- Ready-made app integrations
Lindy: AI steps with human review
A Slack-native AI teammate that runs your inbox, calendar and meetings, and takes on multi-step work across 1,000+ connected apps.
Pricing. $29.99–$199.99/user/mo (Plus/Pro/Max), Enterprise custom
- Human approval steps
- AI model steps
The trade-off. Unlike Dimension, it has no MCP support.
Notis: AI using your own knowledge
Notis is a personal AI assistant you message from WhatsApp, iMessage, Telegram, Slack or email, and reach from your own coding agent through its MCP server.
Pricing. Free–$149/mo
- Knowledge bases or RAG
- AI model steps
The trade-off. Unlike Dimension, it has no approval steps.
OttoKit: visual workflows with branching
Build visual app workflows and AI agents with human approvals. It also has what Dimension lacks: visual builder.
Pricing. Free: 20 multi-step workflows and 250 tasks/month. Pro $12/month ($9 billed annually), Business $24 ($19 annual), Business Plus $49 ($39 annual). Lifetime options are priced separately.
- Visual workflow builder
- Conditional branches
- Email, form, or manual trigger
The trade-off. Unlike Dimension, it has no knowledge sources.
Vellum: self-hosting and ownership
An open-source (MIT) personal AI assistant with its own always-on cloud machine, memory and identity, reachable from web, Mac, iPhone, Android, CLI, Telegram, Slack, email and phone. It also has what Dimension lacks: open source code.
Pricing. Free-$200/mo (Base free, Mighty $30, Super $100, Ultra $200; Custom from $50/mo) plus pay-as-you-go credits ($1 = 1 credit)
- Self-hosting
- Open source
The trade-off. Unlike Dimension, it has no MCP support.
| Tool | App connections | Approval steps |
|---|---|---|
| Dimension | Yes | Yes |
| Duet | Yes | Yes |
| Lindy | Yes | Yes |
| Notis | Yes | No |
| OttoKit | Yes | Yes |
| Vellum | Limited | Yes |
Questions about Dimension alternatives
Which Dimension alternatives suit everyday assistance?
Start with Orchid for help with ongoing context. Boski suits everyday help in WhatsApp. Beside suits meetings and follow-up documents.
Which Dimension alternatives suit workflow automation?
Start with Duet for AI-led work across apps. Lindy suits AI steps with human review. Notis suits AI using your own knowledge.
How do the prices compare with Dimension?
Dimension: Discontinued. Legacy marketing lists Free $0, Premium $29/mo, Pro $99/mo and Max $199/mo; FAQ prices conflict. Orchid: From $29.99/mo; flat paid subscription. No general free trial; targeted student, YC and migration offers. Boski: $5.00/week, charged weekly (Stripe web checkout); 5,000 credits per one-week allowance period; no monthly or annual price published.
Is there a free alternative to Dimension?
Yes. Rene can be used for free.
Prefer an assistant you can message?
Notis takes tasks from WhatsApp, iMessage, Telegram, Slack and email.
Written by Notis, which makes an AI assistant. No placement on this page is paid.
Product details and sources
- Dimension plans & product details
- Orchid plans & product details
- Boski plans & product details
- Beside plans & product details
- Rene plans & product details
- Martin plans & product details
- Duet plans & product details
- Lindy plans & product details
- Notis plans & product details
- OttoKit plans & product details
- Vellum plans & product details